INSTALLATION INSTRUCTIONS

Transcription

1 REPAIR SPALLING INSTALLATION INSTRUCTIONS A CSW Industrials Company BCSW Wall Compression Seals IMPORTANT The following instructions are very important. Read them carefully, and be sure you understand them completely before you begin any work. Store this product in the horizontal position in a clean, dry location. This is a finished product. Store this product in a protected area. Do not stack anything on top of this product. Review approved Balco shop drawings for types and locations prior to beginning work. RECOMMENDED TOOLS TAPE MEASURE / CHOP SAW / SHARP KNIFE / MASKING TAPE / MINERAL SPIRITS / CLEAN CLOTH / PUTTY KNIFE / CAULK- ING GUN / DUCT TAPE (FOR EPOXY INSTALLATION) / TROWEL (FOR EPOXY INSTALLATION) / CLEAN BUCKETS (FOR EPOXY INSTALLATION) JOINT PREPARATION Measure the joint width every 5 to 7 (1.5m - 2.1m) to verify the joint is correctly sized. This should be performed prior to receiving product. Verify the joint is clean, uniform, and of sufficient depth for the seal to be recessed 1/8-1/4 (3mm - 6mm) Concrete adjacent to the expansion joint system must be sound. This should be confirmed by tapping these areas with a hammer. If a hollow sound is heard or the concrete cracks, crumbles or loosens, the unsound concrete must be removed and repaired with a structural repair mortar. Confirm repaired areas are sound by the same method described above. SEAL PREPARATION Store materials at a minimum temperature of 68 F (20 C) for a minimum of 24 hours prior to installation. Store materials in a clean, dry location away from direct sunlight. Material will expand faster when hot and slower when cold. In hot temperatures, do not store material in an enclosed container where temperatures exceed 100 F (38 C). 24hours Before Installation NO VOIDS OR DEBRIS SUFFICIENT DEPTH 68 F (20 C) MINIMUM Rev. 01/18 Page 01 of 05 Toll Free:

2 APPLY TAPE BCSW Wall Compression Seals STEP ONE If fire barrier is provided in conjunction with the BCSW, install the fire barrier at this time. Install the fire barrier in accordance with the applicable fire barrier installation instructions and Balco shop drawings or details. STEP TWO Apply tape to the deck surfaces adjacent to the joint opening. For installations without epoxy bonding adhesive, use blue painters tape. For installations with epoxy bonding adhesive, such as 6 (152mm) or larger nominal joints or installations with fire barrier, use duct tape. Apply water or alcohol to a clean cloth and wipe the joint walls to the depth of the seal material plus 1" (25mm). WIPE DOWN STEP THREE Use a miter saw to make any cuts to the BCSW prior to removing the clear shrink packaging. All starting and ending pieces must be square to the termination point. Use a sharp knife to make any cuts after the packaging and wooden boards have been removed. Apply mineral spirits to the knife to aid cutting. Do not remove the shrink packaging until ready to install in the joint. Install the material directly after removing the shrink packaging to ensure the material does not expand past the joint. info@ Page 02 of 05 Toll Free:

3 STEP FOUR For installations without epoxy bonding adhesive, proceed to Step Six. For installations with epoxy bonding adhesive, such as 6 (152mm) or larger nominal joints or installations with fire barrier, select both parts of the epoxy Bonding Adhesive. Mix Part A and Part B separately. Transfer the entire contents of Part A, THEN the entire contents of Part B into a clean container. Mix the material thoroughly with a low speed (300rpm) drill or jiffy mixer. Mix until the black and white are evenly blended, leaving no streaks of either color. Transfer the final mixture into a separate clean container to prevent unmixed residue streaking and contaminating final mixture. STEP FIVE When fully prepared to install, apply a 40mils (1mm) coating of the epoxy to both joint walls, to a depth of the seal plus 1/2 (13mm). Begin installation at the bottom of the joint and work upward. The installed sticks of BCSW will support subsequent sticks until full expansion is achieved. For horizontal installations, work from one end to the other. Once epoxy is applied, proceed to Step Seven. Epoxy must be wet upon installation of BCSW. The working time for epoxy is approximately 30 minutes, temperature dependant. EPOXY NOTES: Mix only the required amount of epoxy that will be used within 30 minutes Epoxy will not cure when the temperature is below 40 F (4.4 C). Greater volume = less time to cure Smaller volume = more time to cure For every +17 f (10 C), Epoxy cures twice as fast For every -17 f (10 C), Epoxy cures half as fast To increase the pot life of Epoxy, split up the mixed material into smaller units. APPLY EPOXY If the epoxy hardens prior to installation, another coat can be applied within 8 hours. After 8 hours, the joint surface must be abraded prior to re-coating with epoxy. STEP SIX For installations without epoxy bonding adhesive, apply a 1/4 (6mm) bead of the supplied silicone adhesive along both joint walls, approximately 1/2-3/4 (13mm-19mm) back from the surface of the substrate. Begin installation at the bottom of the joint and work upward. The installed sticks of BCSW will support subsequent sticks until full expansion is achieved. For horizontal installations, work from one end to the other. When a continuous joint cannot be finished, the silicone should stop at the last stick installed, and silicone should not be applied to the end of the installed material until the next piece is ready to be installed. 30MIN POT LIFE APPLY SILICONE info@ Page 03 of 05 Toll Free:

4 STEP SEVEN When fully prepared to install, open the material by cutting the clear shrink packaging along the wooden boards. Remove the boards and release lining from both sides of the BCSW. Do not remove the shrink packaging until ready to install the BCSW in the joint. Do not cut the colored face of the material. Do not twist or pull the material to avoid tearing the release liner. Once the packaging is removed, be prepared to install the material immediately after removing the shrink packaging to ensure the material does not expand past the joint. STEP EIGHT Place the material into the joint while gently pushing the pressure sensitive adhesive against the side of the joint. The silicone coating of the seal should be flush with, not protruding above, the substrate surface. Once the material is in place, use a clean margin trowel to firmly press the adhesive to the substrate. Allow the material to expand to fill the joint. Allow 72 hours for full expansion and material equalization. Expansion and equalization rates are affected by temperature. If the pressure sensitive adhesive is hampering installation, use a spray bottle of water to wet the adhesive surface of the BCSW. STEP NINE If splicing is not required, proceed to Step Ten. If splicing is required, select the piece of BCSW to be spliced. To ensure proper fit and provide for compression at splices, cut the final piece of seal for each run 1/2 (13mm) longer than the joint opening. Verify both ends of the seal are cut square for proper seams. All pieces must be square to the termination point. Refer to Step Three as necessary. Apply a minimum 1/4 (6mm) bead of sealant to the mating end of the seal to be installed. Firmly compress new seal to seal already installed in joint. Butt seam all Tee Cross and corner intersections. For horizontal to vertical transitions, install the horizontal material first, then butt the vertical material to the horizontal material. info@ Page 04 of 05 Toll Free:

5 STEP TEN Once all seals are installed, tool silicone over all seams and transitions using a small caulking tool. Evenly spread the silicone on exposed seams for a clean, aesthetically pleasing finish. Fill any holes or voids in seams with the silicone to fill and seal the joint. Run a bead of silicone along each edge of the joint to fill any irregularities in the substrate. BCSW does not require an external fillet bead to provide a watertight seal. STEP ELEVEN Remove tape from adjacent areas and clean the installation area. Ensure that any remaining sealants or epoxy are stored or disposed of properly. Do not allow epoxy or sealant to cure before removing the tape. info@ Page 05 of 05 Toll Free: