TEC® Wood Assure™ Premium Urethane Wood Flooring Adhesive and Moisture Barrier TA-804

• No moisture testing needed
• Easy to trowel
• Sound deadening capabilities

Determine recommended trowel size based on flooring type. Coverage will vary with the absorption of substrate and trowel size. Figures below are presented only as guidelines.

Suitable Substrates

When properly prepared, suitable substrates include:

• Concrete slabs
• Cured leveling compounds
• OSB (underlayment grade)
• Radiant heated subfloors
• Plywood (underlayment grade)
• Ceramic tile
• Terrazzo
• Cement backer board

Substrate Preparation

• The subfloor must be checked according to NWFA guidelines. Ensure that the subfloor is structurally sound, cured smooth, dry, clean and free from dust, dirt, grease, old adhesive, curing agents, sealers, cutback or any other contaminants that could interfere with a good adhesive bond.
• Concrete Slab: Must be cured at least 28 days. Do not use in areas subject to hydrostatic pressure or with pre-existing moisture conditions. pH should be between 7-10. The subfloor must be dry to the touch and not visibly damp. Slab must be prepared to receive flooring in compliance with ASTM F710 and NWFA guidelines. Slabs over a year old with high moisture readings indicate a moisture problem related to hydrostatic pressure, broken water pipes, or improper maintenance. These issues are not covered by our warranty.
• Terrazzo: Surface should be sanded so that all polishes and glaze compounds are stripped. After sanding, thoroughly vacuum, and clean the substrate with mineral spirits and allow to dry before installing the wood flooring.
• APA approved Plywood and OSB Type Subfloors: Panels must be securely fastened. Eliminate all movement with screws. Sand all high joints. Fill and patch low areas. Refer to wood flooring manufacturer for guidelines of moisture content difference between properly acclimated wood flooring and subfloor materials.
• Radiant Heated Subfloors: Check flooring manufacture’s specifications to determine if the wood flooring is approved over radiant heated subfloors. Wood Assure™ is approved for use on hydronic system radiant heated subfloors, provided the system is fully embedded in concrete. Lightweight toppings must be primed first. Turn off the heat 48 hours prior to the installation and leave the heat off until 48 hours after the installation is completed.

• Do not use where there is hydrostatic pressure
• Indoor use only
• Do not use over substrates or slabs treated with sealers or curing compounds
• Do not use on wet, dusty, contaminated or brittle substrates

Application

Installing Wood Flooring with no pre-installation moisture testing:

1. Subfloor must be flat 3/16" (4.8 mm) in 10' (3.05 m) radius or 1/8" (3.2 mm) in 6' (1.8 m) radius.
2. Follow all manufacturer’s instructions and guidelines.
3. Reference trowel chart for proper trowel.
4. Trowel the adhesive parallel to wood flooring in 2'-3' (.6-.9 m) sections and place wood immediately into adhesive. Spread adhesive beyond where the last row of flooring stops to ensure there are no voids between stopping and starting points.
5. 100% adhesive coverage is required for moisture protection.
6. Repeat steps 3-4.
7. Trowels will wear down over time and must be changed to achieve correct coverage.

Glue down only application:

1. Subfloor must be flat 3/16" (4.8 mm) in 10' (3.05 m) radius or 1/8" (3.2 mm) in 6' (1.8 m) radius. Subfloor moisture levels must not exceed wood flooring manufacturer’s guidelines. If it does, use the moisture control method.
2. Follow all manufacturer’s instructions and guidelines.
3. Reference the trowel chart and select the correct trowel for your application.
4. Do not spread more adhesive than can be covered within 30-45 minutes.
5. Good transfer of the adhesive to the wood is critical. Coverage should be approximately 90%. Pull back a newly installed board periodically and inspect the coverage.
6. Trowels will wear down over time and must be changed to achieve correct coverage.

Clean-up

• Remove the adhesive from the wood floor surface as soon as possible before the adhesive dries. Use a soft cloth and mineral spirits carefully to not harm the finish. Clean equipment and tools with mineral spirits while the adhesive is still wet.

• Foot traffic after 8 hours
• Heavy traffic after 24 hours