SECTION PAINTING

Transcription

1 SECTION PAINTING PART 1 GENERAL 1.01 SUMMARY A. Provide: 1. Paint: a. Interior Substrates: 1) Concrete masonry units. 2) Precast concrete. 3) Gypsum drywall. 4) Ferrous and zinc-coated metal. B. Perform the following: 1. Surface preparation, priming, and finish coats for exposed surfaces and items including bare and primed mechanical and electrical equipment as scheduled or considered standard practice. 2. In remodeled areas, paint items or areas indicated in the schedule. C. Do not paint the following: 1. Prefinished items. 2. Concealed spaces. 3. Labels: a. Code requirements such as UL, FM. b. Equipment name, identification, performance rating, or nomenclature plates REFERENCES A. ASTM: 1. D16 - Standard Definitions of Terms 2. D Washability of Interior Architectural Coatings B. Master Painters Institute (MPI): 1. Evaluation of Interior Systems 2. Surface Preparation C. and Decorating Contractors of America (PDCA) P5 - Sample Procedures for Paint and Other Decorative Coating Systems D. Society for Protective Coatings (SSPC): 1. SP 1 - Solvent Cleaning 2. SP 13 - Surface Preparation of Concrete 1.03 DEFINITIONS A. DFT: Dry Film Thickness B. Minimum VS: Minimum Volume Solids C. Paint: Any decorative, protective, or otherwise functional coating applied to a substrate. This substrate may be another coat of paint. The Paint Handbook, by Guy E. Weismantel. D. Sheen: Standard coating terms defined in ASTM D16 apply. E. VOC: Volatile Organic Compound HUDSO

2 1.04 SUBMITTALS A. Product Data: 1. Submit manufacturer s current Product Data including specifications, handling, storage and installation instructions, and maintenance recommendations. 2. Provide schedule detailing the following: a. Specific products to be used for each coat, identified by manufacturer s catalog number and general classification. b. Documentation that manufacturer has reviewed and approved each painting system. c. Cross reference to paint system and locations of application areas. Use same designations indicated on Drawings and in schedules. d. Data pages for all products listed. Highlight the following: 1) Type of resin. 2) Dry film thickness. 3) Volume solids. 4) Units of sheen. 5) VOC levels and MSDS. 6) Other performance or descriptive data specified. B. Samples: 1. Color Selection: a. Submit manufacturer s standard color drawdowns with Product Data for initial selection. b. Label each card with: 1) Job name. 2) Date. 3) Product name and number. 4) Color number stated in color schedule. 5) Name, address, phone number of supplying company. 2. Color and Texture Verification Samples: a. Provide samples of each color and material to be applied, with texture to simulate actual conditions, on representative samples of the actual substrate. b. Step each separate coat, including blockfillers and primers. c. Use representative colors when preparing samples for review. Resubmit until required sheen, color, and texture are achieved QUALITY ASSURANCE A. Source Limitations: Obtain block fillers and primers for each coating system from the same manufacturer as the finish coats. B. Qualifications: 1. Manufacturer: 5 years experience in the manufacture of coating systems. 2. Applicator: 3 years experience in commercial application of coating systems. C. Regulatory Requirements: 1. Paint, stain, and wood preservative finishes and related materials are regarded as hazardous products and are subject to regulations for disposal. 2. Products shall comply with the United States Clean Air Act for maximum VOC content. 3. Comply with local Code requirements and authorities having jurisdiction for flame spread and smoke developed ratings of paints and coatings. 4. Conform to requirements of local authorities having jurisdiction in regard to the storage, mixing, application, and disposal of all paint and related waste materials. 5. All materials, preparation, and workmanship shall conform to requirements of the latest edition of the Architectural Paint Specification Manual by MPI. D. Preinstallation Meetings: Installer and manufacturer s technical representative shall meet prior to the start of installation HUDSO

3 1.06 DELIVERY, STORAGE, AND HANDLING A. Store materials not in use in tightly covered containers in well-ventilated areas with ambient temperatures continuously maintained at not less than 45 degrees F. B. Maintain containers in clean condition, free of foreign materials and residue. C. Remove rags and waste from storage areas daily. D. Containers shall bear the following information: 1. Product name or title of material. 2. Product description (generic classification or binder type). 3. Manufacturer s stock number and date of manufacture. 4. Volume solids, pigment, sheen, and vehicle constituents. 5. Thinning instructions. 6. Application instructions. 7. Color name and number. 8. VOC content ENVIRONMENTAL/PROJECT REQUIREMENTS A. Job Conditions: 1. Paint: Apply only when the temperature of surfaces to be painted and surrounding air temperatures are between 50 degrees F and 95 degrees F WARRANTY A. Provide minimum 5-year manufacturer s written warranty MAINTENANCE A. Provide set of properly labeled drawdowns for future reorder of paint. B. Provide not less than 1 quart for each paint and color used on site for Owner touch-up. PART 2 PRODUCTS 2.01 MANUFACTURER A. Paint: 1. Standard of Quality: Design is based on products of Sherwin-Williams Company (S-W), except as noted. 2. Other Acceptable Manufacturers: Subject to compliance with requirements, acceptable manufacturers are: a. Glidden Professional/Devoe Coatings b. PPG Industries, Pittsburgh Paints c. Diamond Vogel d. Manufacturer of comparable products MATERIALS GENERAL A. Material Compatibility: Provide blockfillers, primers, finish coat materials and related materials that are compatible with one another and the substrates indicated under conditions of service and application, as demonstrated by manufacturer based on testing and field experience. B. Material Quality: 1. Provide manufacturer s best quality trade sale paint material of the various coating types specified. HUDSO

4 2. Paint containers not displaying manufacturer s product identification will not be acceptable. 3. Paint shall be ready-mixed and pre-tinted. 4. Colors: As selected by Owner from manufacturer s full range. 5. Microban Antimicrobial Protection: Inhibits growth of stain and odor-causing bacteria, mold, mildew, and other fungal growth on the dried paint film. EPA approved; NSF approved (National Sanitation Foundation) MISCELLANEOUS PRODUCTS A. Strippers: 1. Low emitting. 2. Shall not contain methanol and trichloroethane, or methylene chloride. PART 3 EXECUTION 3.01 EXAMINATION A. Test existing finishes (if any) for lead before sanding, scraping, or removing. If lead is present, notify Owner. B. Examine substrates and conditions, with Applicator present, for compliance with requirements for maximum moisture content and other conditions affecting performance of work. Maximum acceptable moisture content of substrates: 1. Masonry (CMU): 12 percent. 2. Gypsum Board: 12 percent. C. Verify suitability of substrates, including surface conditions and compatibility with existing finishes and primers. D. Coordination of Work: 1. Steel surfaces with less than 1.0 meter clear working access may necessitate applying material to inaccessible surfaces prior to erection of the finished steel members, either at the point of fabrication or on-site. 2. Review other sections in which primers are provided to ensure compatibility of total systems for various substrates. 3. On request of Owner, furnish information on characteristics of finish materials to ensure use of compatible primers. 4. Notify Owner of problems anticipated using the materials specified. 5. Commencement of installation signifies acceptance of surface conditions PROTECTION A. Protect work of other trades and property of Owner against paint damage and overspray. B. Sealants at expansion joints shall be masked prior to application of coating system. C. Warning Signs: Provide wet paint signs to protect newly painted finishes SURFACE PREPARATION A. Remove hardware and hardware accessories, plates, machined surfaces, lighting fixtures, and similar items already installed that are not to be painted. 1. If removal is impractical or impossible because of the size or weight of the item, provide surfaceapplied protection before surface preparation and painting. 2. After completing painting operations in each space or area, reinstall items removed using workers skilled in the trades involved HUDSO

5 B. Cleaning General: 1. Clean substrates of dust, dirt, grease, mildew, or other substances that could impair the bond of the various coatings according to manufacturer s written instructions for each particular substrate condition and as specified. 2. Schedule cleaning and painting so dust and other contaminants from the cleaning process will not fall on wet, newly painted surfaces. 3. Provide barrier coats over incompatible primers or remove and re-prime. C. Cementitious Substrates: 1. Comply with SSPC-SP Prepare concrete masonry block surfaces to be painted. 3. Determine alkalinity and moisture content of surfaces by performing appropriate tests. a. Perform ph test prior to application of coating system to ensure ph is within acceptable levels. b. If surfaces are sufficiently alkaline to cause blistering and burning of finish paint, correct this condition before application. c. Do not paint surfaces where moisture content exceeds that permitted in manufacturer s printed directions. 4. Remove efflorescence, chalk, dust, dirt, grease, oils, and release agents. 5. Roughen as required to remove glaze. 6. If hardeners or sealers have been used to improve curing, use mechanical methods of surface preparation. 7. Use abrasive blast-cleaning methods if recommended by the paint manufacturer. 8. Allow to dry and vacuum before painting. D. Gypsum Drywall Substrate: 1. Surface to be clean and dry. 2. Set and spackle nail heads, sand smooth, remove dust. 3. Determine moisture content of surfaces by performing appropriate tests. a. Do not paint surfaces where moisture content exceeds that permitted in manufacturer s printed directions. E. Ferrous Metal Substrates: 1. Clean non-galvanized ferrous-metal surfaces that have not been shop coated. 2. Remove oil, grease, dirt, loose mill scale, and other foreign substances. 3. Surface shall be free of all visible rust. 4. Use solvent or mechanical cleaning methods that comply with recommendations of the SSPC. 5. Treat bare and sandblasted or pickled clean metal with a metal treatment wash coat before priming. 6. Patch dents that are larger than 1 in diameter with body filler and sand smooth PAINT PREPARATION A. Mixing: 1. Carefully mix and prepare paint materials in accordance with manufacturer s directions. 2. Maintain containers used in mixing and application of paint in a clean condition, free of foreign materials and residue. 3. Stir material before application to produce a mixture of uniform density; stir as required during application. Do not stir surface film into material. 4. Remove film and, if necessary, strain material before using. 5. Use only thinners approved by the paint manufacturer, and only within recommended limits. B. Tinting: 1. Tint each coat progressively lighter to enable confirmation of number of coats APPLICATION A. General: 1. Apply paint in accordance with manufacturer s directions. HUDSO

6 2. Use applicators and techniques best suited for substrate and type of material being applied. 3. Apply first coat to surfaces that have been cleaned, pretreated, or otherwise prepared for painting as soon as practicable after preparation and before subsequent surface deterioration. B. Multiple Coats: 1. The number of coats and film thickness required is the same regardless of the application method. 2. Do not apply succeeding coats until the previous coat has cured as recommended by manufacturer. 3. Do not recoat until paint has dried to where it feels firm, and does not deform or feel sticky under moderate thumb pressure and where application of another coat of paint does not cause lifting or loss of adhesion of the undercoat. 4. Sand between applications where sanding is required to produce an even smooth surface in accordance with manufacturer s directions. C. Tolerances: 1. Match approved samples for color, texture, and coverage. 2. Apply additional coats when undercoats, stains, or other conditions show through final coat of paint until paint film is of uniform finish, color, and appearance. 3. Give special attention to ensure that surfaces, including edges, corners, crevices, welds, and exposed fasteners, receive a dry film thickness equivalent to that of flat surfaces. D. Minimum Coating Thickness: Apply materials at not less than manufacturer s recommended spreading rate. Provide a total dry film thickness (DFT) of the entire system as recommended by manufacturer. E. Extent of Work: 1. The term exposed surfaces includes areas visible when permanent or built-in fixtures, convector covers, covers for finned tube radiation, grilles, and similar components are in place. Extend coatings in these areas as required to maintain the system integrity and provide desired protection. 2. Paint surfaces behind movable equipment and furniture and wall-mounted items same as similar exposed surfaces. 3. Paint surfaces behind permanently fixed equipment or furniture with prime coat only before final installation of equipment. 4. Paint interior surfaces of ducts, where visible through registers or grilles, with a flat, non-specular black paint. 5. Paint back sides of access panels and removable or hinged covers to match exposed surfaces. 6. Sand lightly between each succeeding enamel or varnish coat. F. Mechanical and Electrical Work: 1. mechanical and electrical work is limited to items exposed in mechanical equipment rooms and in occupied spaces including, but not limited to: a. Uninsulated metal piping. b. Uninsulated plastic piping. c. Pipe hangers and supports. d. Tanks that do not have factory-applied final finishes. e. Visible portions of internal surfaces of metal ducts, without liner, behind air inlets and outlets. f. Duct, equipment, and pipe insulation having cotton or canvas insulation covering or other paintable jacket material. G. Blockfillers: Apply blockfillers to concrete masonry block where items have been removed to match adjacent surfaces. H. Prime Coats: 1. Before application of finish coats, apply a prime coat of material as recommended by manufacturer to material that is required to be painted or finished and has not been prime coated by others HUDSO

7 2. Recoat primed and sealed surfaces where evidence of suction spots or unsealed areas in first coat appears, to assure a finish coat with no burn through or other defects due to insufficient sealing FIELD QUALITY CONTROL A. Owner reserves the right to invoke the following procedure at any time and as often as Owner deems necessary during the period when paints are being applied: 1. Owner will engage the services of a qualified testing agency to sample paint materials being used. 2. Samples of material delivered to Site will be taken, identified, sealed and certified in presence of Contractor. 3. Owner may direct Contractor to stop applying paints if test results show materials being used do not comply with product requirements. 4. Contractor shall remove noncomplying paint materials from Site, pay for testing, and repaint surfaces painted with rejected materials. 5. Contractor will be required to remove rejected materials from previously painted surfaces if, on repainting with complying materials, the 2 paints are incompatible CLEANING, ADJUSTING, AND PROTECTION A. At the end of each workday, remove empty cans, rags, rubbish, wash water, solvents, and other discarded paint materials from the Site. B. Do not clean painting equipment with free draining water. Retain cleaning water and filter out sediments to reduce contaminants entering waterways, drain systems, or into the ground. C. Clean glass and paint-spattered surfaces by washing and scraping, using care not to scratch or damage adjacent finished surfaces. D. Remove, refinish, or repaint Work not in compliance with specified requirements. E. At completion of construction activities of other trades, touch up and restore damaged or defaced painted surfaces. F. Remove temporary protective wrappings provided by others for protection of their work after completion of painting operations WASTE MANAGEMENT A. Separate waste in accordance with local recycling rules. 1. Dispose in accordance with the safety requirements of authorities having jurisdiction. 2. Solvent-based paints shall be stored and disposed of as hazardous materials. 3. Do not dispose of paints or solvents by pouring on the ground INTERIOR PAINT SCHEDULE A. Concrete Masonry Units: 1. Walls: a. Blockfiller: Latex-based, blockfiller: 1) Minimum DFT: 8 mils. 2) Minimum VS: 48 percent. 3) Apply 2 coats if required by substrate. 4) S-W: PrepRite Blockfiller B25W25. b. Low-luster acrylic-latex, interior enamel: 1) 2 finish coats. 2) Minimum DFT: 1.6 mils. 3) Minimum VS: 37 percent. 4) Sheen: 10 to 20 units at 85 degrees. HUDSO

8 5) S-W: ProMar 200 Latex Eg-Shel B20W, 1200 series. B. Gypsum Board: 1. Walls: a. Primer: Vinyl acrylic: 1) Minimum DFT: 1.1 mils. 2) Minimum VS: 26 percent. 3) S-W: PrepRite 200 Latex Wall Primer B28W200. b. Low-luster, acrylic-latex, interior enamel: 1) 2 finish coats. 2) Minimum DFT: 1.6 mils per coat. 3) Minimum VS: 37 percent. 4) Sheen: 10 to 20 units at 85 degrees. 5) S-W: ProMar 200 Latex Eg-Shel B20W, 1200 Series. 2. Unconditioned spaces and mechanical rooms: a. Primer: Latex-based, interior primer. 1) Minimum DFT: 1.1 mils. 2) Minimum VS: 26 percent. 3) S-W: PrepRite 200 Latex Wall Primer B28W200. b. Semigloss, acrylic-latex, interior enamel. 1) 2 finish coats. 2) Minimum DFT: 2.6 mils. 3) Minimum VS: 36 percent. 4) Sheen: 35 to 55 units at 60 degrees. 5) S-W: Metalatex Semi-Gloss B42 Series. C. Ferrous and Zinc-Coated Metal (hollow metal doors and frames): 1. Primer: Quick-drying, rust-inhibitive, waterborne, self-cross-linking acrylic primer: a. Minimum DFT: 2.0 mils. b. Minimum VS: 39. c. S-W: Pro-Cryl Universal Primer B Semigloss, alkyd-enamel odorless finish: a. 2 finish coats. b. Minimum DFT: 3.4 mils. c. Minimum VS: 43 percent. d. Sheen: 40 to 50 units at 60 degrees. e. S-W: ProMar Alkyd Semi-Gloss B34W200 Series HUDSO

9 3.10 SCHEDULE END OF SECTION HUDSO

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