SHEETROCK PLASTERBOARD FINISHING SYSTEMS GUIDE.

Transcription

1 SHEETROCK PLASTERBOARD FINISHING SYSTEMS GUIDE PB300/1 1 JUNE 2015

2 2 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

3 CONTENTS Sheetrock Brand Joint Compounds And Finishes 4 Sheetrock Topping - All Purpose Joint Compound 22 Sheetrock - Easy Sand - Lightweight Setting-Type Joint Compound 6 BaseCote - Technical Data 24 Sheetrock Durabond - Setting-Type Joint Compound 8 All Purpose Premix - Technical Data 26 Sheetrock Taping - Ready-Mixed Joint Compound 10 FinalCote - Technical Data 28 Sheetrock Total - All Purpose Joint Compound 12 TopCote Technical Data 30 Sheetrock Total Lite - Lightweight All Purpose Joint Compound Sheetrock Lightweight All Purpose Joint Compound with Dust Control Sheetrock Fibreglass - Drywall Joint Tape 32 Sheetrock Paper - Drywall Joint Tape 34 Sheetrock All Purpose - Ready-Mixed Joint Compound 18 Sheetrock Paper Faced Metal Bead & Trim Sheetrock Midweight - All Purpose Joint Compound 20 PLASTERBOARD FINISHING GUIDE 1 JUNE

4 APPLICATION GUIDELINES» SHEETROCK BRAND JOINT COMPOUNDS AND FINISHES Taping Taping 2 nd Fill Coat 2 nd Fill Coat paint primer coat paint skim coat primer - joint coat compound skim coat - joint compound second (fill) coat tape and first (embed) coat second (fill) coat tape and first (embed) coat paint primer coat paint skim coat primer - joint coat compound skim coat - joint compound second (fill) coat tape and first (embed) coat second (fill) coat tape and first (embed) coat 3 rd Finishing Coat 3 rd paint primer coat Finishing Coat paint skim coat primer - joint coatcompound skim coat - joint compound second (fill) coat tape and first (embed) coat second (fill) coat tape and first (embed) coat third (finish) coat third (finish) coat third (finish) coat third (finish) coat third (finish) coat third (finish) coat Application Guidelines SHEETROCK Brand Joint Compounds and Finishes By Application The following guidelines for USG Sheetrock Brand interior finishing products are to assist the contractor The following with guidelines the most for appropriate USG Sheetrock system to Brand join interior and finish finishing plasterboard products surfaces are to assist the contractor with the most appropriate system to join and finish plasterboard surfaces Joint Tape Type Sheetrock Paper Fiberglass # Best Easy Sand - Setting Type 3 3 Taping Durabond - Ready - Setting Mixed Type 3 Do not 3 use Taping - Ready Mixed 3 Do not use Good Total - Ready Mixed 3 Do not use Good Total - Ready Mixed # NOTE : Use only USG 3 Sheetrock Brand Do Fibreglass not use # NOTE : Tape Use only for full USG system Sheetrock Warranty Brand Fibreglass Tape for full system Warranty Best Easy Sand - Setting Type Best Easy Durabond Sand - Setting Type Durabond - Setting Type Good Total - Ready Mixed Good Total - Lite Ready - Ready Mixed Mixed Total Lite with - Ready Dust Control Mixed- Ready Mixed Topping Total Lite- with Ready Dust Mixed Control - Ready Mixed Topping Taping - - Ready Mixed Best Taping - Ready Mixed Hand or Pole Sanding Hand Plus 3 or - Pole Lightweight Sanding Ready Mixed Machine Sanding Machine Total - Ready Sanding Mixed Best Plus Total 3 Lite - Lightweight - Ready Mixed Ready Mixed Total - Ready Mixed Total Topping Lite -- Ready Mixed Topping Total Lite- Ready with Dust Mixed Control - Ready Mixed Good Total - Lite Ready withmixed Dust Control - Ready Mixed Total Lite - Ready Mixed Good Total - Ready Mixed Total Lite - Ready Mixed Skim Coating Skim Coating paint primer coat paint skim coat primer - joint coat compound skim coat - joint compound third (finish) coat second (fill) coat third (finish) coat tape and first (embed) coat second (fill) coat Best Best Good Good Spray Skim Spray Skim Total - Ready Mixed Total - Ready Mixed tape and first (embed) coat Level 5 Finish Level 5 Finish SHEETROCK Brand TUFF-HIDE Primer-Surfacer Best Tuff-Hide Best Tuff-Hide SHEETROCK Brand TUFF-HIDE Primer-Surfacer third (finish) coat second (fill) coat third (finish) coat tape and first (embed) coat second (fill) coat tape and first (embed) coat USG Australasia USG Australasia JUNE 2015 PLASTERBOARD FINISHING GUIDE

5 APPLICATION GUIDELINES» SHEETROCK BRAND JOINT COMPOUNDS AND FINISHES SRAG/6-06 Ease of Low Cornice Sheetrock Taping Filling Finishing Skimming Level 5 Sanding Shrinkage Adhesive Durabond Easy Sand Taping Topping Total Total Lite Total Lite with Dust Control Spray Skim N/A Tuff-Hide 3 3 N/A N/A PLASTERBOARD FINISHING GUIDE 1 JUNE 2015 The following are the 5

6 SHEETROCK» LIGHTWEIGHT SETTING-TYPE JOINT COMPOUND EASY SAND EASY SAND For one-day drywall finishing For interior plasterboard and gypsum fibre boards. Weighs 25% less than conventional setting-type compounds. Sanding ease similar to a ready-mixed, all-purpose joint compound. Unique humidity resistance. Exceptional bond with low shrinkage. Check-crack resistance in heavy fills. Choice of setting times. Description Advantages Limitations SHEETROCK Brand Lightweight Setting-Type Joint Compounds (EASY SAND ) are chemically setting compounds for plasterboard interiors that permit same-day joint finishing, and, usually, next-day decoration. Compounds are lightweight for easy handling and sand easily for fast, smooth finishing. They are ideal for heavy fills and are virtually unaffected by humidity. They provide low shrinkage and superior bond, which makes them excellent for laminating plasterboard to plasterboard, to sound-deadening boards, and to above-grade concrete surfaces. In addition, they can be used for filling, smoothing, and finishing interior concrete ceilings and above-grade concrete; and for finishing joints in gypsum fibre boards. To meet varying job requirements, a full line has been developed to provide a choice in setting times. The suffix number identifying each joint compound indicates an approximate setting time. For example, EASY SAND 90 sets in approximately minutes. Other setting times available are 20 (20-30 minutes); 45 (30-80 minutes); 210 ( minutes); and 300 ( minutes). For patching applications requiring very quick setting, SHEETROCK Brand Patching Compound EASY SAND 5, with a setting time of 8-12 minutes, is available. Lightweight formula. Weighs 25% less than conventional setting-type joint compounds. Handling and application is simpler, easier, and faster. Easy sanding. Unlike conventional setting-type joint compounds, these compounds sand easily similar to ready-mixed, all-purpose joint compounds. Joint finishing is faster, easier, smoother. Saves time and money. These compounds provide important labour and material cost reductions. One-day finishing with next-day decoration ensures rapid job completion and earlier occupancy. Choice of setting times aids work flow. Quickly mixed for immediate use. Easy to mix simply combine with water and stir. Compounds are applied after short soaking period and remixing. Resists shrinkage and edge-cracking. Compounds tolerate small amounts of excess water that would otherwise cause delayed shrinkage. Fill and finish coats can be applied when compound is hard but still damp with minimum danger of delayed shrinkage and cracking. Resists humidity changes. Setting rates are virtually unaffected by high humidity or changes in humidity. Application can be made in weather conditions that drying-type compounds would delay job completion. Multiple use. Compounds are also excellent for patching and smoothing interior plasterboard and concrete surfaces because they provide superior bond, low shrinkage, and fast setting-action. 1. Setting action cannot be delayed or prevented by dilution with water. 2. Not to be applied over moist surfaces or surfaces likely to become moist, or on below-grade surfaces or surfaces projecting outside building structure unless protected from direct exposure to moisture. 3. Before using over new interior concrete surfaces, allow concrete to age 60 days or more. Remove protrusions, ridges, form or parting oils, grease, and efflorescence. 4. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. 6 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

7 SHEETROCK» LIGHTWEIGHT SETTING-TYPE JOINT COMPOUND Directions Preparation In cold weather during plasterboard joint finishing, minimum surface, water, mix, and air temperature of 8 C must be ensured until joints are completely dry. Adequate ventilation shall be provided to carry off excess moisture. Plasterboard Joint Treatment Filling and Finishing over Interior Poured Concrete Ceilings Use with Water-Resistant Plasterboard Laminating and Back-blocking Decorating Position and apply plasterboard in accordance with manufacturer s recommendations. Mix EASY SAND Joint Compound according to directions on bag. Cover joint with a thin layer of compound and embed tape, leaving about 0.8 mm of compound under feathered edge and a thin layer over the tape. After compound has set, apply second coat, feathering out approximately 50 mm beyond first coat. After setting, apply third coat, feathering out 50 mm beyond second coat. After each coat is applied, smooth away any tool lap marks or other imperfections prior to hardening action. Finish fastener heads with three coats of joint compound; finish corner bead and inside corners as required with at least two coats, feathered and smoothed out onto panel faces. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. Sheetrock Fibreglass joint tape may also be used for a two coat system. Grind high plane differences in concrete level with adjacent area; also remove any form oil, efflorescence, and greasy deposits. Prime exposed metal with a good rust-inhibitive primer. Fill offsets or voids with joint compound. Apply additional coats of joint compound as necessary, after each coat has set, but not necessarily dried. For a Level 5 finish spray a uniform coat of SHEETROCK Brand Tuff-Hide Primer-Surfacer per application requirements. In areas to be tiled, for tapered edge joints, embed SHEETROCK Brand Joint Tape with EASY SAND 45 or 90. When set, apply a fill coat. Take care not to crown the joint. Wipe excess joint compound from the panel surface before it hardens. For butt joints and interior angles, embed SHEETROCK Brand Joint Tape with EASY SAND 45 or 90. A fill coat is not necessary. Again, take care not to crown the joint. For fasteners, spot fastener heads at least once. When penetrations are made in the plasterboard fill and seal all openings around pipes, fittings, and fixtures with a thinned-down coat of tile adhesive. For best results, use Type I Ceramic Tile Adhesive that meets ANSI A136.1 both as a sealer and to set the tile. With a 25 mm brush, apply the thinned adhesive onto the raw plasterboard core at cutouts, and allow area to dry thoroughly prior to application of tile. Before the Easysand compound dries, wipe excess material from the surface of the plasterboard. For areas not to be tiled, embed tape in the conventional manner. Finish with at least two coats of a SHEETROCK Brand Joint Compound to provide joint finishing for painting and wallpapering. Apply EASY SAND Joint Compound in the prescribed manner to back of face panels to be laminated or backblocked. Laminate face panels to (base layer panels) or back-block panels using moderate pressure and temporary nailing or shoring to ensure adequate bond. Refer to plasterboard manufacturer s technical data for exact back-blocking details. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Product Data Color: Natural. Binder: Vinyl. Filler: Calcium Sulfate. Dilution (water): Approximately 4.6 to 5.6 L/8.0 kg. Refer to bag for specific water dilution directions. Density (dry bulk): 513 kg/m 3. Freezing Sensitivity: None after set, but not necessarily dry. Coverage: Average 16 kg/100 m 2 plasterboard. Compliance with Standards: Meet ASTM Standard C475. Storage: Close open bags as tightly as possible and store in a dry place. Shelf Life: Up to 9 months under protected storage conditions. Packaging: 16 kg bags for EASY SAND 5, 20, 45, 90, 210 and 300; 1.8 kg (4 lb.) boxes for EASY SAND kg bags for EASY SAND 5, 20, 45, 90, and 210 PLASTERBOARD FINISHING GUIDE 1 JUNE

8 SHEETROCK» SETTING-TYPE JOINT COMPOUND Setting-Type Joint Compounds DURABOND DURABOND For one-day drywall finishing For interior plasterboard and gypsum fibre boards. Unique humidity resistance. Exceptional bond, low shrinkage. Unusual check-crack resistance in heavy fills. Choice of setting times. Description Advantages Limitations SHEETROCK Brand DURABOND Setting-Type Joint Compounds are chemically setting powder compounds for plasterboard interiors that permit same-day joint finishing, and, usually, next-day decoration. They are also ideal for heavy fills and are virtually unaffected by humidity. They provide low shrinkage and superior bond, which make them excellent for laminating plasterboard to plasterboard (including back-blocking), to sound-deadening boards, and to above-grade concrete surfaces. In addition, DURABOND Joint Compound can be used for filling, smoothing, and finishing interior concrete ceilings and above-grade concrete and for taping and finishing water resistant plasterboard under tiles in bathroom wall areas. Other uses include finishing joints in exterior soffits / eaves, presetting joints in veneer plaster finish systems, and as an adhesive for bonding cove cornices. To meet varying job requirements, a full line of DURABOND joint compounds has been developed to provide a choice in setting times. The suffix number associated with each formulation indicates an approximate setting time. DURABOND 20 sets in about minutes; DURABOND 45 in minutes; DURABOND 90 in minutes; DURABOND 210 in minutes; and DURABOND 300 in minutes. Saves time and money. These joint compounds provide important labour and material cost reductions. One-day finishing with next-day decoration ensures rapid job completion and earlier occupancy. Choice of setting times aids work flow. Quickly mixed for immediate use. Easy to mix simply combine with water and stir. Compounds are applied after short soaking period and remixing. Resists shrinkage and edge-cracking. Compounds tolerate small amounts of excess water that would otherwise cause delayed shrinkage. Fill and finish coats can be applied when compound is hard but still damp with minimum danger of delayed shrinkage and cracking. Resists humidity changes. Setting rates are virtually unaffected by high humidity or changes in humidity. Application can be made in weather conditions that drying-type compounds would delay job completion. Multiple use. Compounds are also excellent for patching and smoothing interior plasterboard and concrete surfaces because they provide superior bond, low shrinkage, and fast setting-action. 1. Setting-type joint compounds are more difficult to smooth after drying than conventional drying-type compounds and should be smoothed before set or while they are in a damp but set state. 2. Setting action cannot be delayed or prevented by dilution with water. 3. Not to be applied over moist surfaces or surfaces likely to become moist, or on below-grade surfaces or surfaces projecting outside building structure unless protected from direct exposure to moisture. 4. Before using DURABOND Joint Compound over new interior concrete surfaces, concrete should cure 60 days or more. Remove protrusions, ridges, form or parting oils, grease, and efflorescence. 5. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Directions Preparation In cold weather during plasterboard panel joint finishing, minimum surface, water, mix, and air temperature of 8 C must be maintained until joints are completely dry. Adequate ventilation shall be provided to carry off excess moisture. 8 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

9 SHEETROCK» SETTING-TYPE JOINT COMPOUND Plasterboard Joint Treatment Filling and Finishing over Interior Poured Concrete Ceilings Exterior Soffits/Eaves Use with Water-Resistant Plasterboard Laminating and Back-blocking Decorating Position and apply plasterboard in accordance with manufacturer s recommendations. Mix DURABOND Joint Compound according to directions on bag. Cover joint with a thin layer of compound and embed tape, leaving about 0.8mm of compound under feathered edge and a thin layer over the tape. After compound has set, apply second coat, feathering out approximately 50mm beyond first coat. After setting, apply third coat, feathering out 50mm beyond second coat. After each coat is applied, smooth away any tool lap marks or other prior to setting action. Finish fastener heads with three coats of joint compound; finish corner bead and inside corners as required with at least two coats, feathered and smoothed out onto panel faces. Sheetrock Fibreglass joint tape may also be used for a two coat system. Grind high plane differences in concrete level with adjacent area; also remove any form oil, efflorescence, and greasy deposits. Prime exposed metal with a good rust-inhibitive primer. Fill offsets or voids with joint compound. Apply additional coats of joint compound as necessary, after each coat has set, but not necessarily dried. For a Level 5 finish, spray a uniform coat of SHEETROCK Brand Tuff-Hide Primer Surfacer per application requirements. Mix joint compound according to directions on bag. Do not overmix or use in temperatures below 8 C (45 F.) Prefill joints with DURABOND Joint Compound. After prefill has set, embed SHEETROCK Joint Tape centered over joint. When compound has set, immediately apply fill coat. Apply joint compound over flanges of zinc control joints, corner beads, and metal trim. Spot fastener heads. After fill coat has set, apply finishing coat of joint compound. Completely cover all joints, angles, beads, control joints, and fasteners. After the joint compound joint has dried, apply one coat of a good-quality oil or latex exterior primer. Then follow with at least one coat of a good-quality latex exterior paint. In areas to be tiled, for tapered edge joints, embed SHEETROCK Joint Tape with DURABOND 45 or 90 Joint Compound. When set, apply a fill coat. Take care not to crown the joint. Wipe excess joint compound from the panel surface before it sets. For butt joints and interior angles, embed SHEETROCK Joint Tape with DURABOND 45 or 90 Joint Compound. A fill coat is not necessary. Again, take care not to crown the joint. For fasteners, spot fastener heads at least once with DURABOND 45 or 90 Joint Compound. When penetrations are made in the plasterboard fill and seal all openings around pipes, fittings, and fixtures with a thinned-down coat of tile adhesive. For best results, use Type I Ceramic Tile Adhesive that meets ANSI A136.1 both as a sealer and to set the tile. With a 25mm brush, apply the thinned adhesive onto the raw plasterboard core at cutouts, and allow area to dry thoroughly prior to application of tile. Before the Durabond compound dries, wipe excess material from the surface of the plasterboard. For areas not to be tiled, embed tape with joint compound in the conventional manner. Finish with at least two coats of SHEETROCK Joint Compound (All Purpose, Lightweight All Purpose, MIDWEIGHT All Purpose, or Topping) to provide joint finishing for painting and wallpapering. Apply DURABOND Joint Compound in the prescribed manner to back of face panels to be laminated or backblocked. Laminate face panels to base layer panels or back-block panels using moderate pressure and temporary nailing or shoring to ensure adequate bond. Refer to plasterboard manufacturer s technical data for exact back-blocking details. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Product Data Color: Natural. Binder: Vinyl. Filler: Calcium Sulfate. Dilution (water): Approximately 49 to 56 L/100 kg. Refer to bag for specific water dilution directions. Density (dry bulk): 641 kg/m 3. Freezing Sensitivity: None after set, but not necessarily dry. Coverage: Average 16 kg/100 m 2 of plasterboard. Compliance with Standards: Meet ASTM Standard C475. Storage: Close open bags as tightly as possible and store in a dry place. Shelf Life: Up to 9 months under protected storage conditions. Packaging: 20 kg (44 lb. ) tan bags. PLASTERBOARD FINISHING GUIDE 1 JUNE

10 SHEETROCK» READY-MIXED JOINT COMPOUND Ready-Mixed Joint Compound TAPING Complete line of easy-working products for fast, smooth joint finishing Ready-mixed for minimal mixing, thinning, retempering Smooth application, long-lasting performance Description Advantages Limitations Preparation SHEETROCK Brand Ready-Mixed Joint Compounds contain vinyl binders and other ingredients that provide performance superior to that of ordinary ready-mixed products. Blended to a creamy, smooth consistency, United States Gypsum Company vinyl-based formulations give excellent slip and bond and easy workability. They can be used directly from the container, and require only minimal mixing, thinning, and retempering. Joint finishing is fast, easy, and smooth, reducing labour costs and improving appearance and quality of the job. SHEETROCK Brand Taping Joint Compound, Ready-Mixed A high-performance product for embedding tape. Ideal for patching plaster cracks and for use on most plasterboards when maximum bond and crack resistance are essential. It is the best ready-mixed compound for laminating. Ready-mixed convenience and economy. Factory-mixed for high quality. Mixing and sanding time reduced substantially. Proper compound for each task. Part of a two-compound system for quality joint finishing: SHEETROCK Brand Taping Compound, Ready-Mixed, for embedding, and SHEETROCK Brand Topping Compound, Ready-Mixed, for second and third coats. Better slip, excellent bond. Compound features superior ease of handling, good crack-resistance, and excellent adhesion. Fewer droppings, less waste. Butter consistency of this compound minimizes droppings and reduces risk of staining woodwork. Costly job cleanup is virtually eliminated. Low shrinkage for finer finish. Factory-controlled shrinkage results in finer finished work without extra labour. Fewer decorating problems. Tests show that SHEETROCK Brand Ready-Mixed Joint Compounds are especially resistant to cracking along tape edges. Smoothness of finished joints and lack of any chemical reaction with quality paints or wallpaper simplify decoration. 1. Protect container from freezing and extreme heat. 2. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Position and apply plasterboard in accordance with manufacturer s recommendations. Maintain minimum air, joint compound and surface temperature of 13 C (55 F) within working area until joints are completely dry. Adequate ventilation shall be provided to carry off excess moisture. At 25 C/50% R.H., allow approximately 24 hours between applications. Mix contents lightly without adding water. Use directly from container for covering fasteners and corner bead. For taping (especially for use in mechanical tools), thin as necessary. Add water in 250 ml increments to avoid overthinning. Remix lightly and test apply after each water addition JUNE 2015 PLASTERBOARD FINISHING GUIDE

11 SHEETROCK» READY-MIXED JOINT COMPOUND Application Decorating Product Data Apply over thoroughly dry surfaces only. Cover joint with a thin layer of taping compound and embed paper tape, leaving about 0.8 mm of compound under feathered edge. Let dry and sand lightly as required. Apply second coat of finishing compound, feathering approximately 50 mm beyond first coat. Let dry, sand lightly as required, and then apply third coat of finishing compound, feathering 50 mm beyond second coat. Sand lightly as required when dry. To finish inside corners, apply taping compound to both sides of corner. Fold tape along center crease and press into position. Embed tape, leaving about 0.8 mm of compound under feathered edge. When dry, sand lightly as required. Apply second coat of finishing compound on one side and let dry. Then cover other side. When dry, sand lightly as required. Finish fastener heads, corner bead, and inside corners as required with at least three coats of joint compound, feathered out onto panel faces and finished to a smooth surface. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Material: Vinyl-type formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: Approximately 61.0 to 73.2 kg/100 sq. m. of plasterboard. Compliance with Standards: Meets ASTM Standard C475. Storage: Shelf life up to nine months under good storage conditions. Store compounds in protected place, because extreme heat or cold accelerates aging. Check product date-codes periodically. Rotate stock on first-in, first-out basis. Protect container from freezing, direct sunlight, and extreme heat. Keep tightly sealed. Packaging: 28 kg (17 L) plastic pails; 21.7 kg (48 lb.) cartons. PLASTERBOARD FINISHING GUIDE 1 JUNE

12 SHEETROCK» ALL PURPOSE JOINT COMPOUND All Purpose Joint Compound TOTAL A truly complete-purpose compound providing professional-grade performance. Smoother working. Sands more easily. Good open time. Ensures lower shrinkage. Description Limitations Preparation Application Decorating This truly complete-purpose joint compound provides overall high performance, as well as superior working qualities and good open time. Compared to most other conventional-weight compounds, SHEETROCK Brand All Purpose Joint Compound-TOTAL is smoother working, and sands more easily. It also offers excellent bond over bead, trim, and fastener concealments.the special vinyl formulation is an option for embedding tape as well as for filling, leveling, and finishing over plasterboard joints, fasteners, bead, and trim. SHEETROCK Brand All Purpose Joint Compound-Total is also excellent for skim coating and hand-applying simple textures. Complies with ASTM C Protect container from freezing and extreme heat. 2. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Position and apply plasterboard in accordance with manufacturer s recommendations. In cold weather and during gypsum panel joint finishing, temperatures within the building shall be maintained at a minimum of 13 C (55 F).Adequate ventilation shall be provided to carry off excess moisture. Mix contents lightly without adding water. Use directly from container for covering fasteners and corner bead. For taping and finishing joints (especially for use in mechanical tools), thin as necessary. Add water in 250 ml increments to avoid overthinning. Remix lightly and test apply after each water addition. Cover joint with a thin layer of compound and embed paper tape, leaving about 0.8 mm of compound under feathered edge. Let dry and sand lightly. Apply second coat, feathering approximately 50 mm beyond first coat. Let dry, sand lightly as required, and then apply third coat, feathering 50 mm beyond second coat. Sand lightly as required when dry. Finish fastener heads, corner bead, and inside corners as required with at least three coats of joint compound, feathered out onto panel faces and finished to a smooth surface. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting JUNE 2015 PLASTERBOARD FINISHING GUIDE

13 SHEETROCK» ALL PURPOSE JOINT COMPOUND Product Data Material: Vinyl-type formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: Approximately 61.0 to 73.2 kg/100 sq. m of plasterboard. Compliance with Standards: Meets ASTM Standard C475. Storage: Shelf life up to nine months under good storage conditions. Store compounds in protected place, because extreme heat or cold accelerates aging. Check product date-codes periodically. Rotate stock on first-in, first-out basis. Protect container from freezing, direct sunlight, and extreme heat. Keep tightly sealed. Packaging: 26 kg (17 L) plastic pails and 21.7 kg (13.2 L) cartons. PLASTERBOARD FINISHING GUIDE 1 JUNE

14 SHEETROCK LIGHTWEIGHT» ALL PURPOSE JOINT COMPOUND TOTAL LITE For professional drywall finishing High performance compound. Minimizes cratering. Excellent workability (including better slip and pull). Low shrinkage, easy sanding. Description Advantages Limitations Preparation SHEETROCK Brand Lightweight All Purpose Joint Compound TOTAL LITE is a high-performance compound specifically formulated for the professional plasterboard finisher. It weighs up to 25% less than conventionalweight compounds and provides superior workability, including slick application, good open time, excellent crack resistance and easy sanding. Special vacuum processing and patented formulation technology eliminate entrained air to minimize cratering and minor surface imperfections. Vinyl formulation ensures professional quality finishing as well as low shrinkage; metal such as corner bead and fasteners usually can be covered with just two coats, saving time and money. The special vinyl formulation is an option for embedding tape as well as filling and finishing coats in interior plasterboard applications. Also for covering corner bead, fasteners and trim, for skim-coating plasterboard surfaces and for hand-applying simple textures. SHEETROCK Brand quality In addition to the cost-saving benefits described above, this vinyl-based compound offers all the advantages of high-quality SHEETROCK Brand Ready-Mixed Joint Compound. Faster mixing time When additional water is necessary, SHEETROCK Brand Lightweight All Purpose Joint Compound TOTAL LITE accepts water more quickly to reduce solution time and mixes with less effort than conventional compounds. Better slip, excellent bond Provides superior ease of handling, good crack resistance and excellent adhesion. More open time Facilitates working back, even in fast-drying conditions, by providing more wet-edge life to prevent rolling and tearing of previously laid compound; also eliminates nuisance of crusted compound flaking from open container walls. Low shrinkage for faster, finer finishing Factory-controlled low-shrinkage formulation allows finer finished work and usually requires only two coats over metal bead and fasteners, saving time and money. Minimized cratering Special vacuum processing and patented formulation technology eliminate entrained air to minimize cratering and minor surface imperfections. 1. Protect container from freezing and extreme heat. 2. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Position and apply plasterboard in accordance with manufacturer s recommendations. In cold weather and during plasterboard joint finishing, temperatures within the building shall be maintained at a minimum of 13 C (55 F.) Adequate ventilation shall be provided to carry off excess moisture. Mix contents lightly without adding water. Use directly from container for covering fasteners and corner bead. For taping and finishing joints (especially for use in mechanical tools), thin as necessary. Add water in 250 ml increments to avoid overthinning. Remix lightly and test apply after each water addition JUNE 2015 PLASTERBOARD FINISHING GUIDE

15 SHEETROCK LIGHTWEIGHT» ALL PURPOSE JOINT COMPOUND Application Decorating Product Data Cover joint with a thin layer of compound and embed paper tape, leaving about 0.8 mm of compound under feathered edge. Let dry and sand lightly. Apply second coat, feathering approximately 50 mm beyond first coat. Let dry, sand lightly as required, and then apply third coat, feathering 50 mm beyond second coat. Sand lightly as required when dry. Finish fastener heads, corner bead, and inside corners as required with at least two coats of joint compound, feathered out onto panel faces and finished to a smooth surface. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Material: Vinyl-type formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: 38.3L/100 sq. meters. Compliance with Standards: Meets ASTM Standard C475. Storage: Shelf life up to nine months under good storage conditions. Store compounds in protected place, because extreme heat or cold accelerates aging. Check product date-codes periodically. Rotate stock on first-in, first-out basis. Protect container from freezing, direct sunlight, and extreme heat. Keep tightly sealed. Packaging: 17L plastic pail; 13.2L carton PLASTERBOARD FINISHING GUIDE 1 JUNE

16 SHEETROCK LIGHTWEIGHT» ALL PURPOSE JOINT COMPOUND with Dust Control WITH DUST CONTROL Same great performance as original SHEETROCK brand PLUS 3 lightweight all purpose joint compound with reduced airborne sanding dust for less mess and faster cleanup. Dust-control formulation substantially reduces airborne dust (independently verifi ed with Worker Industrial Hygiene Testing). Great for remodeling projects. Weighs up to 35% less than conventional compounds. Low shrinkage requires only two coats over metal. Sands with the ease of a topping compound; bonds like a taping compound. Description Advantages Limitations Preparation Application Sanding Sheetrock brand lightweight all purpose joint compound with dust control is a ready-mixed compound with a unique formula that binds up fi ne residue during sanding to form heavier particles that tend to fall to the fl oor instead of clouding the air. This advanced joint compound weighs up to 35% less than conventional compounds, so handling, application and sanding are simple, easy and fast. Each job goes more quickly and cleans up faster with less nuisance from airborne sanding dust. Sheetrock lightweight all purpose joint compound with dust control requires only two coats over bead and fasteners. It bonds like a taping product for a tough, tight bond under most job conditions and combines all-purpose, single-package convenience with optimum taping and topping performance. Sheetrock lightweight all purpose joint compound with dust control is compatible with all other USG joint compounds, so it can be used just for the joint fi nishing coats that will be sanded. For example, use Sheetrock all purpose joint compound for the taping coat and Sheetrock lightweight all purpose joint compound with dust control for the fi nishing coats. Sheetrock lightweight all purpose joint compound with dust control creates less airborne dust when sanded to provide a cleaner job environment. It also offers all the benefi ts of a Sheetrock ready-mixed joint compound, with up to 35% less weight, less shrinkage and exceptional ease of sanding. This unique joint compound is formulated to provide low shrinkage and good crack resistance. It also features excellent adhesion and usually requires just two coats over metal, such as corner beads and fasteners saving time and money. 1. Before using any epoxy coating over a surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer recommendations for preparation or suitability of substrates. Many epoxy coatings exert signifi cant shear stress on the substrate while curing/drying, which can cause the joint compound bond to fail, resulting in delamination problems. 2. Protect container from freezing, exposure to extreme heat and direct sunlight. Install Sheetrock brand gypsum panels following manufacturer recommendations. In cold weather and during gypsum panel joint fi nishing, temperatures within the building shall be maintained at a minimum of 55 F (13 C). Adequate ventilation shall be provided to carry off excess moisture. Mix Sheetrock lightweight all purpose joint compound with dust control lightly prior to application. May be used directly from container for covering fasteners and corner bead. For taping and fi nishing joints (especially when using mechanical tools), thinning by adding water may improve application and performance. Add water in half-pint increments to avoid overthinning. Remix lightly and test-apply after each water addition until desired consistency is reached. Cover joint with a thin layer of compound, and embed tape, leaving about 1/32" of compound under feathered edge; let dry and smooth lightly as required. Apply second coat, feathering approximately 2" beyond fi rst coat; let dry and smooth lightly as required. Apply third coat, feathering 2" beyond second coat; let dry and smooth lightly as required. Finish fastener heads, corner bead and inside corners with two coats of joint compound, feather out onto panel faces and fi nish to a smooth surface. Use 150-grit sandpaper or 220-grit abrasive mesh cloth, or fi ner. General-purpose sandpaper can be used 16 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

17 SHEETROCK LIGHTWEIGHT» ALL PURPOSE JOINT COMPOUND with Sheetrock lightweight all purpose joint compound with dust control; however, higher-quality sandpaper will provide optimal results. These products typically feature a heavier-grade paper and more uniformly bonded grit, which make them less susceptible to sandpaper packing (i.e., sanding dust caught between the back of the sandpaper and the face of the sanding block), which can cause uneven surface sanding. For painting and decorating, follow manufacturer directions for materials used. All surfaces, including applied joint compound, must be thoroughly dry, dust free and not glossy. Sand all joints, fasteners and beads before decorating. Remove any sanding dust from surfaces. If smoothing and dry sanding, use 150-grit sandpaper or 220-grit abrasive mesh cloth, or finer. Sheetrock brand First Coat primer or a comparable interior latex wall primer, that will equalize the texture and porosity variation between the joint compound and the gypsum board face paper, should be applied and allowed to dry before painting, texturing or wallpapering. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per wallcovering manufacturer's instructions. Where walls and ceilings will be subject to severe artificial or natural side lighting and/or decorated with gloss paint (eggshell, semi-gloss or high-gloss), skim-coat gypsum panels with Sheetrock brand conventional weight all purpose joint compound or cover coat compound to improve fastener concealment and minimize decorating problems such as joint banding. Skim coating fills imperfections in joint work, smoothes the paper covering of drywall panels and provides a uniform surface for priming and painting. As an alternative to skim coating, apply Sheetrock brand tuff-hide primer-surfacer. For large projects a mock up of the selected system (substrate, joint compounds and finish coatings) should be evaluated by all responsible parties for suitability, appearance and durability before any large-scale applications begin. Product Data Material: Latex-type formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: Approx. 9.4 gal./1,000 ft. 2 (38.3 L/100 m 2 ) of gypsum panels. Compliance with Standards: Meets ASTM Standard C475. VOC Content: <2g/L. Storage Store in dry location and protect from moisture, freezing and exposure to extreme heat and direct sunlight. Keep tightly sealed. Shelf life of unopened container under protected storage conditions is up to nine months. Check product date codes periodically. Rotate stock on first-in, first-out basis. When lifting joint compound packages, observe proper lifting techniques. Keep the load close to your body and use your legs, not your arms, to lift. Use mechanical assistance such as pallet lifters or hand dollies wherever possible. Confine manual lifting and carrying to the shortest possible distance. PLASTERBOARD FINISHING GUIDE 1 JUNE

18 SHEETROCK» READY-MIXED JOINT COMPOUND Ready-Mixed Joint Compound ALL PURPOSE Complete line of easy-working products for fast, smooth joint finishing Ready-mixed for minimal mixing, thinning, retempering Smooth application, long-lasting performance Description Advantages Limitations Preparation SHEETROCK Brand Ready-Mixed Joint Compounds contain vinyl binders and other ingredients that provide performance superior to that of ordinary ready-mixed products. Blended to a creamy, smooth consistency, United States Gypsum Company vinyl-based formulations give excellent slip and bond and easy workability. They can be used directly from the container, and require only minimal mixing, thinning, and retempering. Joint finishing is fast, easy, and smooth, reducing labour costs and improving appearance and quality of the job. SHEETROCK Brand All Purpose Joint Compound, Ready-Mixed Used for embedding and finishing, also for handapplied simple texturing. Combines single-package convenience with good taping and topping performance. Also recommended for laminating and repairing cracks in interior plaster and masonry not subject to moisture. Ready-mixed convenience and economy. Factory-mixed for high quality. Mixing and sanding time reduced substantially. For the convenience of a single compound for both taping and topping, SHEETROCK Brand All Purpose Compound, Ready-Mixed, is ideal. Better slip, excellent bond. Compound features superior ease of handling, good crack-resistance, and excellent adhesion.. Fewer droppings, less waste. Butter consistency of this compound minimizes droppings and reduces risk of staining woodwork. Costly job cleanup is virtually eliminated. Low shrinkage for finer finish. Factory-controlled shrinkage results in finer finished work without extra labour. Fewer decorating problems. Tests show that SHEETROCK Brand Ready-Mixed Joint Compounds are especially resistant to cracking along tape edges. Smoothness of finished joints and lack of any chemical reaction with quality paints or wallpaper simplify decoration. 1. Protect container from freezing and extreme heat. 2. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Position and apply plasterboard in accordance with manufacturer s recommendations. Maintain minimum air, joint compound and surface temperature of 13 C (55 F) within working area until joints are completely dry. Adequate ventilation shall be provided to carry off excess moisture. At 25 C/50% R.H., allow approximately 24 hours between applications. Mix contents lightly without adding water. Use directly from container for covering fasteners and corner bead. For taping and finishing joints (especially for use in mechanical tools), thin as necessary. Add water in 250 ml increments to avoid overthinning. Remix lightly and test apply after each water addition JUNE 2015 PLASTERBOARD FINISHING GUIDE

19 SHEETROCK» READY-MIXED JOINT COMPOUND Application Decorating Product Data Apply over thoroughly dry surfaces only. Cover joint with a thin layer of compound and embed paper tape, leaving about 0.8 mm of compound under feathered edge. Let dry and sand lightly as required. Apply second coat, feathering approximately 50 mm beyond first coat. Let dry, sand lightly as required, and then apply third coat, feathering 50 mm beyond second coat. Sand lightly as required when dry. To finish inside corners, apply compound to both sides of corner. Fold tape along center crease and press into position. Embed tape, leaving about 0.8 mm of compound under feathered edge. When dry, sand lightly as required. Apply second coat on one side and let dry. Then cover other side. When dry, sand lightly as required. Finish fastener heads, corner bead, and inside corners as required with at least three coats of joint compound, feathered out onto panel faces and finished to a smooth surface. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Material: Vinyl-type formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: Approximately 61.0 to 73.2 kg/100 sq. m. of plasterboard. Compliance with Standards: Meets ASTM Standard C475. Storage: Shelf life up to nine months under good storage conditions. Store compounds in protected place, because extreme heat or cold accelerates aging. Check product date-codes periodically. Rotate stock on first-in, first-out basis. Protect container from freezing, direct sunlight, and extreme heat. Keep tightly sealed. Packaging: 28 kg (17 L) plastic pails; 21.7 kg (48 lb.) carton. PLASTERBOARD FINISHING GUIDE 1 JUNE

20 SHEETROCK» ALL PURPOSE JOINT COMPOUND MIDWEIGHT High-performance compound weighs less, works and sands more easily Ready-mixed convenience. Weighs up to 15% less than conventional-weight compounds. Easy working and sanding. Low shrinkage. Description Advantages SHEETROCK Brand All Purpose Joint Compound (MIDWEIGHT ) is a ready-mixed, high-performance compound providing superior working qualities and good open time. Compared to conventional-weight compounds, it weighs up to 15% less, is easier working and sanding, and provides lower shrinkage for metal bead, trim, and fastener concealments.a special vinyl formulation makes it an option for embedding tape as well as for filling, leveling, and finishing over plasterboard joints, fasteners, bead, and trim. Also excellent for skim-coating and hand-applying simple textures. (When used as a texture finish, it should be overpainted when dry. Not washable unpainted.) Complies with ASTM C475. Excellent slip and bond: Features superior working qualities, good crack-resistance, and excellent adhesion. Low shrinkage for finer finishing: Provides lower shrinkage than conventional-weight compounds for easier concealment of metal bead, trim, and fasteners. More open time: Facilitates working back, even under fast drying conditions, by providing more wet-edge life to prevent rolling and tearing of previously laid compound. Lighter weight: Up to 15% less weight than conventional-weight compounds. Handling and applying is easier and faster. Easy sanding: Provides excellent ease in sanding. Limitations 1 Protect container from freezing and extreme heat. 2 Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Preparation Application Decorating Position and apply plasterboard in accordance with manufacturer s recommendations. In cold weather and during plasterboard joint finishing, maintain temperatures within the building at a minimum 13 C (55 F). Provide adequate ventilation to carry off excess moisture. Mix contents lightly without adding water. Use directly from container for covering fasteners and corner bead. For taping and finishing joints (especially for use in mechanical tools), thin as necessary. Add water in 250 ml increments to avoid overthinning. Remix lightly and test apply after each water addition. Cover joint with a thin layer of compound and embed paper tape, leaving about 0.8 mm of compound under feathered edge. Smooth lightly as required and let dry. Apply second coat, feathering approximately 50 mm beyond the first coat. Smooth lightly as required and let dry. Apply finishing coat, feathering approximately 50 mm beyond prior coat. Let dry and sand as required. Finish fastener heads, corner bead, and inside corners with only two coats of joint compound, feathered out onto panel faces and finished to a smooth surface. It is recommended that all joints, fasteners, and beads be sanded before decorating. Remove any sanding dust from surfaces. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting JUNE 2015 PLASTERBOARD FINISHING GUIDE

21 SHEETROCK» ALL PURPOSE JOINT COMPOUND Product Data Material: Vinyl-type nonasbestos formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: Approximately 38.3 L/100 m 2 of plasterboard. Compliance with Standards: Meets ASTM Standard C475. Storage: Shelf life up to nine months under good storage conditions. Store compounds in protected place, because extreme heat or cold accelerates aging. Check product date-codes periodically. Rotate stock on first-in, first-out basis. Protect container from freezing, direct sunlight, and extreme heat. Keep tightly sealed. Packaging: 17 L (4.5 gal.) pail. PLASTERBOARD FINISHING GUIDE 1 JUNE

22 SHEETROCK» ALL PURPOSE JOINT COMPOUND TOPPING Complete line of easy-working products for fast, smooth joint finishing Ready-mixed for minimal mixing, thinning, retempering Smooth application, long-lasting performance Description Advantages Limitations Preparation SHEETROCK Brand Ready-Mixed Joint Compounds contain vinyl binders and other ingredients that provide performance superior to that of ordinary ready-mixed products. Blended to a creamy, smooth consistency, United States Gypsum Company vinyl-based formulations give excellent slip and bond and easy workability. They can be used directly from the container, and require only minimal mixing, thinning, and retempering. Joint finishing is fast, easy, and smooth, reducing labour costs and improving appearance and quality of the job. SHEETROCK Brand Topping Joint Compound, Ready-Mixed A low-shrinkage, easily applied and sanded product recommended for second and third coats over plasterboard joints. Bond strength, however, is insufficient for embedding tape or for filling metal beads and trim. Ready-mixed convenience and economy. Factory-mixed for high quality. Mixing and sanding time reduced substantially. Proper compound for each task. Part of a two-compound system for quality joint finishing: SHEETROCK Brand Taping Compound, Ready-Mixed, for embedding, and SHEETROCK Brand Topping Compound, Ready-Mixed, for second and third coats. Better slip, excellent bond. Compound features superior ease of handling, good crack-resistance, and excellent adhesion. Fewer droppings, less waste. Butter consistency of this compound minimizes droppings and reduces risk of staining woodwork. Costly job cleanup is virtually eliminated. Low shrinkage for finer finish. Factory-controlled shrinkage results in finer finished work without extra labour. Fewer decorating problems. Tests show that SHEETROCK Brand Ready-Mixed Joint Compounds are especially resistant to cracking along tape edges. Smoothness of finished joints and lack of any chemical reaction with quality paints or wallpaper simplify decoration. 1. Protect container from freezing and extreme heat. 2. Prior to using any epoxy coating over any surface treated with joint compound, consult the epoxy coating manufacturer and follow manufacturer s specific recommendations regarding the preparation or suitability of substrates for the epoxy coating. Many epoxy coatings exert significant shear stress on the substrate as the strong epoxy film shrinks while curing/drying. This stress can cause the bond of the joint compound to fail, resulting in delamination problems. Position and apply plasterboard in accordance with manufacturer s recommendations. Maintain minimum air, joint compound and surface temperature of 13 C (55 F) within working area until joints are completely dry. Adequate ventilation shall be provided to carry off excess moisture. At 25 C/50% R.H., allow approximately 24 hours between applications. Mix contents lightly without adding water. Use directly from container for covering fasteners and corner bead. For taping and finishing joints (especially for use in mechanical tools), thin as necessary. Add water in 250 ml increments to avoid overthinning. Remix lightly and test apply after each water addition JUNE 2015 PLASTERBOARD FINISHING GUIDE

23 SHEETROCK» ALL PURPOSE JOINT COMPOUND Application Decorating Product Data After taping compound coat has dried, apply fill coat of SHEETROCK Brand TOPPING Joint Compound along joints and over fasteners, smoothing out 50 mm beyond taping (first) coat. Spread smooth with long, parallel strokes. When dry, if necessary, sand lightly. Apply thin finish coat of SHEETROCK Brand Topping Joint Compound to joints and fasteners. When dry, sand lightly, if needed. To finish inside corners, use 125 mm knife to apply SHEETROCK Brand TOPPING Joint Compound to one side only over previously applied taping compound. Let dry, then cover other side. When dry, sand lightly, if necessary. To finish outside corners, use SHEETROCK Brand Topping Joint Compound directly from container. Apply fill coat over metal beads and trim and first coat over fasteners. After first fill coat over metal corner bead has dried, apply another coat of SHEETROCK Brand TOPPING Joint Compound. Let dry and, if necessary, apply another coat. Feather each coat slightly beyond prior coat. When final coat is dry, sand lightly, if needed. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Material: Vinyl-type formulation. Types: Hand or mechanical application. Freezing Sensitivity: Protect from freezing. Coverage: Approximately 61.0 to 73.2 kg/100 sq. m of plasterboard. Compliance with Standards: Meets ASTM Standard C475. Storage: Shelf life up to nine months under good storage conditions. Store compounds in protected place, because extreme heat or cold accelerates aging. Check product date-codes periodically. Rotate stock on first-in, first-out basis. Protect container from freezing, direct sunlight, and extreme heat. Keep tightly sealed. Packaging: 28 kg (17 L) plastic pails; 21.7 kg (48 lb.) cartons. PLASTERBOARD FINISHING GUIDE 1 JUNE

24 1st COAT 2nd COAT HAND & MECHANICAL TOOLS APPLICABLE BASECOTE» TECHNICAL DATA Advantages Mixes easily to a creamy gauge. Soaking is not essential. Flow smoothly under trowel and from mechanical tools. Excellent joint filling with superior adhesion, high strength and low shrinkage. Description BaseCote is a plaster based, setting type compound formulated for bedding of plasterboard joints, angles and spotting fastener heads. BORAL PLASTERBOARD Build something great BaseCote 45 Superior adhesion High strength Easy mixing Easy application Recommended BaseCote is suitable for base coating plasterboard joints, angles and fastener heads when used in conjunction with Boral Plasterboard finishing compounds. BaseCote is recommended for use as the first and second coat in Boral three coat jointing system. BaseCote Specification Colour: Off white Working time: Setting type Available in 45, 60 and 90 minute working times Packaging: VOC: Application 20kg bag Less than 50g per litre Surfaces must be clean and free from dust. Can be applied with hand and mechanical tools. The use of paper tape is recommended. For an extended working time use BaseCote 90. Each coat of BaseCote compound must be allowed to set thoroughly before applying the next coat. Thoroughly clean all tools and equipment after use. Avoid 1 2 On hot, windy days, where the risk of early dry out exists, the use of RediBase compound is recommended. Under cold or wet conditions allow a longer dry time before applying the following coat. The inclusion of other materials to a mix will impair the performance (e.g. reduced strength and poor adhesion) and void the product warranty. Application of plaster based setting compounds over premixed drying type compounds is not recommended. 1 1st COAT 2 2nd COAT HAND & MECHANICAL TOOLS APPLICABLE 24 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

25 BASECOTE» TECHNICAL DATA Mixing Always use clean cold water, tools and containers. Do not mix with residues of previously used compounds. Use of dirty tools or containers may reduce working time and strength. Always add BaseCote to water (5kg of powder to 3kg of water). Mix only enough BaseCote to meet needs. Mix by hand or with a power mixer (max of 400rpm) until a workable paste has been achieved. Caution: Do not overmix. Overmixing can introduce air bubbles, which can create surface imperfections and can reduce working time. Once setting has commenced the material cannot be remixed and must be discarded. Storage BaseCote should be stored under cover in a dry environment and protected from temperature extremes. Storage in an unsuitable environment can shorten the life of this product. It is recommended that BaseCote is used before the Best Before date displayed on the bag. It may still be usable after that date if stored unopened, in an appropriate environment. Health and Safety 1. Dust from this product contains Silica. Prolonged inhalation may be harmful to health. 2. Ensure adequate ventilation, wear eye protection and an approved disposable respirator which conforms to AS1716: 2012 Type P1 or P2. 3. If dust or paste causes irritation use impervious PVC, Nitrile or Rubber gloves. Wash exposed skin after handling. If product gets into the eyes, wash thoroughly with clean water. 4. Do not ingest contents of package. If ingested, seek medical advice. 5. Keep contents out of reach of children. 6. Be conscious of the environment. Dispose of empty packaging in a responsible manner. 7. Follow safe lifting instructions on the bag. 8. For further health and safety instructions, refer to the Material Safety Data Sheet for this product, available from your Boral Plasterboard sales office, TecASSIST or Boral website In Emergencies Call Poison Information PLASTERBOARD FINISHING GUIDE 1 JUNE

26 SANDABLE ALL PURPOSE PREMIX» TECHNICAL DATA Advantages Premium grade lightweight All Purpose or finishing compound. May be used for all three coats or as a finishing coat. Excellent workability, easy application by hand or with mechanical tools. Minimal mixing and cleaning of tools. OK to sand by hand or with mechanical sanding tools. Excellent surface for painting. Description All Purpose Premix compound (formerly LiteCote ) is an economical, air-drying, lightweight compound suitable for all three coat applications or as a finishing coat for all plasterboard joints, angles and fastener heads. It is a premium grade product that can be used in conjunction with BaseCote or RediBase compounds. Recommended All Purpose Premix is suitable for use as all three coats in the Boral three coat jointing system. All Purpose Premix is suitable for the final coating of plasterboard joints, angles and fastener heads when used in conjunction with Boral BaseCote or Boral RediBase compounds. All Purpose Premix Specification Colour: White Working time: Drying Type Minimum 24 hours drying time or longer in adverse climatic conditions Packaging: 18kg re-sealable pail VOC: Less than 50g per litre 1 1st COAT 2 Application 2nd COAT HAND & MECHANICAL TOOLS APPLICABLE Surfaces must be clean and free from dust. All Purpose Premix has a high viscosity in the pail. It may be diluted to a workable viscosity by adding water followed by mechanical mixing. Can be applied with hand and mechanical tools. 3 FINISHING COAT SANDABLE PATCHING When using All Purpose Premix for all three coats then the first coat must be used to bed a high quality paper tape. All Purpose Premix compound must be allowed to dry thoroughly (approx. 24 hours) before re-coating or sanding. Only apply over base compounds that have been allowed to dry thoroughly (24 hours). Sand with care. Lightly sand using 150, 180 or 220 grit paper. Thoroughly clean all tools and equipment after use JUNE 2015 PLASTERBOARD FINISHING GUIDE

27 ALL PURPOSE PREMIX» TECHNICAL DATA The application of All Purpose Premix compound at interior temperatures less than 10ºC is not recommended. Under cold or wet weather conditions, allow more that 24 hours for thorough drying. When diluting All Purpose Premix do not vigorously over mix as this will introduce entrapped air which can result in surface imperfections. Do not apply All Purpose Premix over joints that are not thoroughly dry. Pinholes may result. Do not use sandpaper lower than 150 grit. Take care to avoid scratching when sanding. The inclusion of other materials to a mix will impair the performance (e.g. reduced strength and poor adhesion) and void the product warranty. Mixing Always use clean tools. Do not mix with residues of previously used compounds. The inclusion of such materials will impair the performance of this product and will void the product warranty. All Purpose Premix may appear thick in pail. Before adding water, lightly mix and test its application. If required, add water to achieve desired consistency. Caution: Avoid over-thinning when adding water as this may cause cracking and excessive shrinkage. If liquid has separated from the compound, stir carefully to restore consistency. Storage All Purpose Premix should be stored under cover in a dry environment and protected from temperature extremes. Storage in an unsuitable environment can shorten the life of this product. It is recommended that All Purpose Premix is used before the Best Before date displayed on the pail. It may still be usable after that date if stored unopened, in an appropriate environment. Health and Safety 1. Dust from this product contains Silica. Prolonged inhalation may be harmful to health. 2. Ensure adequate ventilation, wear eye protection and an approved disposable respirator which conforms to AS1716: 2012 Type P1 or P2. 3. If dust or paste causes irritation use impervious PVC, Nitrile or Rubber gloves. Wash exposed skin after handling. If product gets into the eyes, wash thoroughly with clean water. 4. Do not ingest contents of package. If ingested, seek medical advice. 5. Keep contents out of reach of children. 6. Be conscious of the environment. Dispose of empty packaging in a responsible manner. 7. Follow safe lifting instructions on the pail. 8. For further health and safety instructions, refer to the Material Safety Data Sheet for this product, available from Caution: Do not overmix. Overmixing can introduce air bubbles, which can create surface imperfections. PLASTERBOARD FINISHING GUIDE 1 JUNE

28 FINALCOTE» TECHNICAL DATA Advantages Premium grade semi-lightweight compound. Easy application by hand or with mechanical tools. Very easy to sand by hand or with mechanical sanding tools. Smooth excellent surface for painting Description FinalCote compound is a premixed, air-drying, easy sanding compound developed specially for use as the ideal coat for all plasterboard joints, angles and fastener heads. It is a premium grade product designed to be used in conjunction with BaseCote or RediBase compounds. Recommended FinalCote is suitable for the coating of plasterboard joints, angles and fastener heads when used in conjunction with Boral BaseCote compounds. FinalCote is recommended for use as the third coat in the Boral three coat jointing system. FinalCote can be used over plasterboard or FinalCote Specification Colour: White cement sheeting. Working time: Drying Type Minimum 24 hours drying time or longer in adverse climatic conditions Packaging: VOC: 20kg re-sealable pail Less than 50g per litre Application FINISHING COAT Surfaces must be clean and free from dust. FinalCote has a high viscosity in the pail. It may be diluted to a workable viscosity by adding water followed by mechanical mixing. Can be applied with hand and mechanical tools. SANDABLE Only apply over base compounds that have been allowed to dry thoroughly (24 hours). FinalCote compound must be allowed to dry thoroughly (approx. 24 hours) before sanding or coating. Sand with care. Lightly sand using 150, 180 or 220 grit paper. Thoroughly clean all tools and equipment after use. HAND & MECHANICAL TOOLS APPLICABLE 28 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

29 FINALCOTE» TECHNICAL DATA Avoid The application of FinalCote compound at interior temperatures less than 10ºC is not recommended. Under cold or wet weather conditions, allow more that 24 hours for thorough drying. When diluting FinaCote do not vigorously over mix as this will introduce entrapped air which can result in surface imperfections. Do not apply FinalCote over joints that are not thoroughly dry. Pinholes may result. Do not use sandpaper lower than 150 grit. Take care to avoid scratching when sanding. The inclusion of other materials to a mix will impair the performance (eg. reduce strength and poor adhesion) and void the product warranty. Mixing Always use clean tools. Do not mix with residues of previously used compounds. The inclusion of such materials will impair the performance of this product and will void the product warranty. FinalCote may appear thick in the pail. Before adding water, lightly mix and test its application. If required, add water to achieve desired consistency. Caution: Avoid over-thinning when adding water as this may cause cracking and excessive shrinkage. If liquid has separated from the compound, stir carefully to restore consistency. Caution: Do not overmix. Overmixing can introduce air bubbles, which can create surface imperfections. Storage FinalCote should be stored under cover in a dry environment and protected from temperature extremes. Storage in an unsuitable environment can shorten the life of this product. It is recommended that FinalCote is used before the Best Before date displayed on the pail. It may still be usable after that date if stored unopened, in an appropriate environment. Health and Safety 1. Dust from this product contains Silica. Prolonged inhalation may be harmful to health. 2. Ensure adequate ventilation, wear eye protection and an approved disposable respirator which conforms to AS1716: 2012 Type P1 or P2. 3. If dust or paste causes irritation use impervious PVC, Nitrile or Rubber gloves. Wash exposed skin after handling. If product gets into the eyes, wash thoroughly with clean water. 4. Do not ingest contents of package. If ingested, seek medical advice. 5. Keep contents out of reach of children. 6. Be conscious of the environment. Dispose of empty packaging in a responsible manner. 7. Follow safe lifting instructions on the pail. 8. For further health and safety instructions, refer to the Material Safety Data Sheet for this product, available from PLASTERBOARD FINISHING GUIDE 1 JUNE

30 TOPCOTE 550» TECHNICAL DATA Advantages Economical grade, standard weight Easy application by hand or with mechanical tools. Excellent for mechanical tool sanding. Smooth excellent surface for painting. compound. Description TopCote 550 compound is a premixed, air-drying, economical compound developed specially for use as the ideal coat for all plasterboard joints, angles and fastener heads. It is a premium grade product designed to be used in conjunction with BaseCote or RediBase compounds. Recommended TopCote 550 is suitable for the coating of plasterboard joints, angles and fastener heads when used in conjunction with BaseCote or RediBase compounds. TopCote 550 is recommended for use as the third coat in the Boral three coat jointing system. TopCote 550 can be used over plasterboard or TopCote 550 Specification Colour: White cement sheeting. Working time: Drying Type Minimum 24 hours drying time or longer in adverse climatic conditions. Application FINISHING COAT Surfaces must be clean and free from dust. TopCote 550 has a high viscosity in the pail. It may be diluted to a workable viscosity by adding water followed by mechanical mixing. Can be applied with hand and mechanical tools. SANDABLE Only apply over base compounds that have been allowed to dry thoroughly (24 hours). TopCote 550 compound must be allowed to dry thoroughly (approx. 24 hours) before sanding or coating. Sand with care. Lightly sand using 150, 180 or 220 grit paper. Thoroughly clean all tools and equipment after use. HAND & MECHANICAL TOOLS APPLICABLE Packaging: VOC: 20kg re-sealable pail Less than 50g per litre 30 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

31 TOPCOTE 550» TECHNICAL DATA Avoid The application of TopCote 550 compound at interior temperatures less than 10ºC is not recommended. Under cold or wet weather conditions, allow more that 24 hours for thorough drying. When diluting TopCote 550 do not vigorously over mix as this will introduce entrapped air which can result in surface imperfections. Do not apply TopCote 550 over joints that are not thoroughly dry. Pinholes may result. Do not use sandpaper lower than 120 grit. Take care to avoid scratching when sanding. not Do use for taping. The inclusion of other materials to a mix will impair the performance (e.g. reduced strength and poor adhesion) and void the product warranty. Mixing Always use clean tools. Do not mix with residues of previously used compounds. The inclusion of such materials will impair the performance of this product and will void the product warranty. TopCote 550 may appear thick in the pail. Before adding water, lightly mix and test its application. If required, add water to achieve desired consistency. Caution: Avoid over-thinning when adding water as this may cause cracking and excessive shrinkage. If liquid has separated from the compound, stir carefully to restore consistency. Caution: Do not overmix. Overmixing can introduce air bubbles, which can create surface imperfections. Storage TopCote 550 should be stored under cover in a dry environment and protected from temperature extremes. Storage in an unsuitable environment can shorten the life of this product. It is recommended that TopCote 550 is used before the Best Before date displayed on the bag. It may still be usable after that date if stored unopened, in an appropriate environment. Health and Safety 1. Dust from this product contains Silica. Prolonged inhalation may be harmful to health. 2. Ensure adequate ventilation, wear eye protection and an approved disposable respirator which conforms to AS1716: 2012 Type P1 or P2. 3. If dust or paste causes irritation use impervious PVC, Nitrile or Rubber gloves. Wash exposed skin after handling. If product gets into the eyes, wash thoroughly with clean water. 4. Do not ingest contents of package. If ingested, seek medical advice. 5. Keep contents out of reach of children. 6. Be conscious of the environment. Dispose of empty packaging in a responsible manner. 7. Follow safe lifting instructions on the pail. 8. For further health and safety instructions, refer to the Material Safety Data Sheet for this product, available from PLASTERBOARD FINISHING GUIDE 1 JUNE

32 SHEETROCK FIBREGLASS» DRYWALL JOINT TAPEDrywall Joint Tape Unique cross-fiber construction provides greater drywall joint strength and crack resistance than conventional fibreglass mesh tapes. Self-adhesive tape goes on quickly eliminates bedding coat and provides smooth finished joints with just two coats. Use SHEETROCK Brand DURABOND Setting-Type Joint Compound or SHEETROCK Brand EASY SAND Lightweight Setting- Type Joint Compound for first coat over tape. Provides 2-coat, 1-day joint finishing. Description Advantages SHEETROCK Brand Fiberglass Drywall Tape s unique cross-fiberglass construction provides greater plasterboard joint strength and crack resistance than conventional fiberglass mesh tapes. SHEETROCK Fiberglass Drywall Tape resists shrinking, tearing, stretching and distortion. Unique construction Conventional fiberglass mesh tapes can stretch slightly when the joint is deflected. When stretching occurs, joints can crack. In contrast, the unique leno weave construction of SHEETROCK Fiberglass Drywall Tape resists stretching to prevent cracking in drywall joints. Because it achieves greater joint strength than conventional fiberglass tapes, SHEETROCK Fiberglass Drywall Tape is to be used with DURABOND Setting-Type or EASY SAND Lightweight Setting-Type joint compounds for the first coat, and either a setting-type or dryingtype (powder or ready-mixed) joint compound for the second coat. Fewer coats of joint compound SHEETROCK Fiberglass Drywall Tape is self-adhesive, eliminating the embedding or taping coat required with conventional paper tape. Simpler, quicker joint finishing With DURABOND Setting-Type or EASY SAND Lightweight Setting-Type joint compounds, joint finishing can be completed in just one day. Ideal for patching Use SHEETROCK Fiberglass Drywall Tape to easily patch small holes and cracks in plasterboard walls and ceilings. Application Joint Treatment Maintain minimum air, joint comound, tape, and surface temperature of 13 C (55 F) within working area until joints are completely dry. Provide adequate ventilation to carry off excess moisture. Be sure drywall surface is dry and clean. Center and apply SHEETROCK Fiberglass Drywall Tape directly over joint, pressing tape firmly so it adheres evenly. Cut tape with drywall knife. To eliminate wrinkles and ensure maximum bond, press entire length of tape with drywall knife. Avoid overlapping tape at intersections. Cover with a layer of DURABOND Setting-Type or EASY SAND Lightweight Setting-Type joint compound, forcing compound through the tape with a drywall knife/trowel to completely fill and level the joint. Failure to completely fill the joint may result in cracking. Let dry and sand lightly as required. Apply second coat of EASY SAND Lightweight Setting-Type or drying-type (powder or readymixed) joint compound, feathering approximately 50 mm beyond first coat. Let dry and sand lightly as required. To finish inside corners, bend the tape with your fingers to form a U. Apply tape along one side only. Press it into the corner for approximately 300 mm and then apply the other side. Work down the corner in this manner until tape is pressed firmly in place. Apply EASY SAND Lightweight Setting-Type joint compound down the entire length of one side of the corner, then repeat on the other side. Force the compound through the tape, being careful not to cut the tape with drywall knife during the compound application. Let dry and sand lightly as required. Apply second coat of EASY SAND Lightweight Setting-Type or drying-type (powder or ready-mixed) compound, feathering approximately 50 mm beyond first coat. Let dry and sand lightly as required. Finish fastener heads, corner bead and trim with at least three coats of joint compound, (only two coats if using EASY SAND Lightweight Setting-Type Joint Compound) feathered out onto panel faces and sanded as required to a smooth surface. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper JUNE 2015 PLASTERBOARD FINISHING GUIDE

33 SHEETROCK FIBREGLASS» DRYWALL JOINT TAPE Decorating Product Data For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Width: 47 mm. Coverage: Approximately 121 m/100 m 2 of plasterboard. Packaging: 76 m rolls, 20 rolls per carton. Storage: Shelf life up to nine months under good storage conditions. Store at a minimum temperature of 8 C (45 F.) Note All products described here may not be available in all geographic markets. Consult your local USG sales office or representative for information. Trademarks The following trademarks used herein are owned by the USG Corporation or a subsidiary company: DURABOND,EASY SAND, SHEETROCK,TUFF-HIDE. Notice We shall not be liable for incidental and consequential damages, directly or indirectly sustained, nor for any loss caused by application of these goods not in accordance with current printed instructions or for other than the intended use. Our liability is expressly limited to replacement of defective goods. Any claim shall be deemed waived unless made in writing to us within thirty (30) days from the date it was or reasonably should have been discovered. SAFETY FIRST! Follow good safety and industrial hygiene practices during handling and installation of all products and systems. Take necessary precautions and wear the appropriate personal protective equipment as needed. Read material safety data sheets and related literature on products before specification and/or installation. PLASTERBOARD FINISHING GUIDE 1 JUNE

34 SHEETROCK PAPER» DRYWALL JOINT TAPE Drywall Joint Tape For strength and crack resistance in drywall joint treatment High tensile strength to resist tearing, stretching and distortion Wafer-thin paper for easier joint treatment Roughened surface for superior bond Accurately center-creased to improve corner treatment Description Advantages Environmental Conditions Application Decorating Product Data SHEETROCK Brand Joint Tape is a special paper tape designed for use with U.S. Gypsum Joint Compounds to reinforce joints and corners in plasterboard interiors. SHEETROCK Brand Joint Tape is lightly sanded for increased bond and comes with a positive crease to simplify application in corners. Extra strength for strong joints Manufactured from special cross-fibered paper with high tensile strength, both with and across the paper grain, to produce joints as strong as the board itself. SHEETROCK Brand Joint Tape also provides exceptional wet strength resists stretching, wrinkling and other distortions, lies flat and resists tearing under tools. Easy to apply Precision processing produces a superior bond to joint compound. Positive center creasing and uniform winding for accurate and trouble-free application to angles as well as flat joints. Resists cracking, stretching High-strength composition delivers crack-resistant performance and eliminates stretching. In cold weather and during plaserboard application and joint finishing, temperatures within the building shall be maintained within the range of C (55-70 F.) Adequate ventilation shall be provided to carry off excess moisture. Position and apply plasterboard sheets in accordance with manufacturer s recommendations. Prepare joint compound following directions on container. Cover joint with a thin layer of compound and embed tape, leaving about 0.8 mm of compound under feathered edge. While embedding the tape, remove excess compound from edge and apply a thin coat over the tape. Let dry and sand lightly as required. Apply second coat, feathering approx. 50 mm beyond first coat. Let dry, sand lightly as required, and then apply third coat, feathering 50 mm beyond second coat. Sand lightly as required when dry. Finish fastener heads, corner bead, and inside corners as required with at least three coats of joint compound, feathered out onto panel faces and sanded as required to a smooth surface. If sanding, use nothing coarser than 180-grit sandpaper, and avoid scuffing paper. For priming and decorating with paint, texture, or wallcovering, follow manufacturer s directions for materials used. All surfaces must be dry, dust-free, and not glossy. Walls to be covered with wallpaper or vinyl wallcovering should be sealed per manufacturer s recommendations. To improve concealment where walls and ceilings will be subjected to severe artificial or natural critical lighting, the plasterboard surface should be sprayed with Level 5 SHEETROCK Brand Tuff-Hide Primer-Surfacer before painting. Material: Cross-fibered paper. Coverage: Approx. 121 m/100m 2 of plasterboard. Packaging Type Width Length No. of Units/ Application (mm) (metres) Master Carton Roll rolls Popular size for hand-application joint treatment. Weighs approximately 0.6 kg per roll rolls Designed to fit easily into taping machines with fewer roll changes. Weighs approximately 1.2 kg per roll so that machine balance is not disturbed JUNE 2015 PLASTERBOARD FINISHING GUIDE

35 SHEETROCK» PAPER FACED METAL BEAD & TRIM For cost-effective, problem-free corners, the logical choice is USG Sheetrock Paper faced Metal Bead and Trim. Fast, easy installation means reduced labour costs, while superior product performance minimises costly job callbacks, saving money and ensuring customer satisfaction. With tape-on beads, nailing is not required, so installation and corner alignment are easier, and there are no nails to pop when wood framing shrinks. The paper tape covering ensures excellent adhesion of joint compounds and paints for a strong, smooth finish. Sheetrock Paper Faced Metal Bead and Trim provides superior resistance to edge cracking and chipping for a look that stays beautiful despite the stresses of normal building movement and everyday wear and tear. In fact, USG provides a Lifetime Warranty (to a maximum of 30 years) that Sheetrock Paper Faced Metal Bead and Trim will not edge crack using recommended application techniques (Refer to Warranty WPFB/10-08). The unique nose coating on the paper tape covering resists scuffing and fuzzing from knives and sanding Quality, quick and crack resistant USG Sheetrock Paper Faced Metal Bead and Trim are available in an extensive range # of external, internal, bull-nose and cover trims to suit the majority of finishing needs. A specialist zinc Control Joint is also available where required for large ceiling and wall areas. # Note: All products illustrated may not be available in all geographic markets. Please consult your local USG sales office or representative for information. PLASTERBOARD FINISHING GUIDE 1 JUNE

36 PAPER FACED METAL BEAD & TRIM. Sheetrock Paper Faced Metal Bead and Trim provides superior resistance to edge cracking and chipping for a look that stays beautiful, longer. Outside Corners - Standard Use for 90 outside corners. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C D Code B1W DW B1XW EL DW B1 Super Wide DW Note: XW = Extra Wide; EL = Even Leg Designed for 135 outside corners. Offset bead is designed to give a true offset corner with a smaller bead height requiring less compound to finish. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C D Code B1 OS DW Outside Corners - Bullnose Installs easily to form a smooth rounded outside corner. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A Radius B Code SLOC DW mm Radius Designed for 135 offset angles. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A Radius B Code SLOC OS DW mm Radius USG Australasia 36 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

37 PAPER FACED METAL BEAD & TRIM. Outside Corners (cont d) Provides a narrower finished look with a smaller radius compared to other bullnose profiles. Also excellent for trimming around windows. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A Radius C Code Baby Bull DW mm Radius Patented style designed specifically to make straight, strong outside corner angles. Available as a 75mm width and manufactured with two 19mm galvanized steel strips laminated to paper tape with a flexible gap between the strips. B1 Beaded Flex has a unique raised bead (nose) in the flexible gap to provide faster, easier finishing with joint compound. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C D Code B1 Beaded Flex DW Outside/Inside Corners Can be formed to fit any outside or inside angle. Constructed with two 11mm wide galvanized rust-resistant steel strips with a 1.6mm gap between the strips.. Available in 30 M rolls Dimensions (mm) Style A B C D Code Flex Tape DW USG Australasia PLASTERBOARD FINISHING GUIDE 1 JUNE

38 PAPER FACED METAL BEAD & TRIM. Inside Corners -Standard Use for 90 inside corners. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C D Code B DW Designed for 135 offset angle on inside corners. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C D Code B2 OS DW Inside Corners - Bullnose Use to create a smooth rounded inside corner. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A Radius B Code SLIC DW mm Radius Bullnose inside for 135 offset angles. Creates a smooth rounded inside corner. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A Radius B Code SLIC OS DW mm Radius 38 1 JUNE 2015 PLASTERBOARD FINISHING GUIDE

39 PAPER FACED METAL BEAD & TRIM. L Trim Use where plasterboard abuts with suspended ceilings, beams, plaster, masonry, and concrete walls, as well as untrimmed door and window jambs. Suitable for use on 13mm thickness plasterboard. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C Code B DW Reveal Trim This reveal trim solves a variety of problems often associated with negative details on soffits, wall areas, light boxes, and other architectural details. A paper flange on both trim legs eliminates the need to caulk the edge of reveal details, providing a cleaner and straighter line. It does not have a bead. Suitable for use on 13 or 16mm thickness plasterboard. Standard lengths 2.4, 2.7 and 3.0 M Dimensions (mm) Style A B C D Code Reveal NB DW Reveal NB DW Control Joint The zinc control joint is used to relieve stresses induced by expansion and contraction in large ceiling and wall areas of plasterboard. Refer to the plasterboard manufacturer for spacing requirements. The control joint opening is protected with a plastic tape which is removed after the surface has been completed. Standard length 3.05 M (10 ) Dimensions (mm) Style A B C Code Zinc # DW B C A USG Australasia PLASTERBOARD FINISHING GUIDE 1 JUNE

40 To request literature, samples, a visit from a USG Boral specialist, or for all technical questions, call your nearest USG Boral office below. USG Boral, the USG Boral Logo and usgboral.com, BaseCote, FinalCote, TopCote 550, Spray Skim, and Tuff-Hide are registered trade marks of USG Boral in Australia, other countries, or both. Sheetrock, Easy Sand, Durabond, Total, and Total Lite are trademarks owned by United States Gypsum or its subsidiaries, and used under license. If these and other USG Boral trade marks are marked on their first appearance in this information with trade mark symbols ( or ), these symbols indicate Australian registered or common law trade marks owned by USG Boral and others at the time this information was published. Such trade marks may also be registered or common law marks in other countries. Copyright USG Boral Building Products Pty Limited 2015 This technical information is intended to provide general information on plasterboard products and should not be a substitute for professional building advice. We recommend you use a qualified person to install USG Boral plasterboard. Illustrations in this guide are only representative of USG Boral plasterboard products and the appearance and effects that may be achieved by their use. To ensure the information you are using is current, USG Boral recommends you review the latest building information available on the USG Boral website. For further information contact TecASSIST or your nearest USG Boral Sales Office USGBORAL