TITEBOND 771-Step Adhesive, Moisture & Sound Control combines the superior properties of a moisture cure adhesive with the ability to be used as a moisture and sound control system, primarily for wood floor installations. This product has no moisture limitations and calcium chloride or in-situ RH testing is not necessary. Once cured, the product is water-resistant and is not adversely affected by exposure to moisture or water. It provides a tough, flexible and tenacious bond to a variety of substrates. Being able to glue down and control moisture and sound in one application, it saves both labor and time. Alternatively, TITEBOND 771-Step can be used just as a one-part adhesive simply by using a different sized trowel. Please see specific application guidelines in this document for details and instructions. The elastomeric characteristics allow the adhesive to move with the wood as it expands and contracts over the life of the floor. It has unparalleled green grab and strength development, spreads easily, and cleans-up better than urethane products. TITEBOND 771-Step is most often used to secure solid wood, bamboo, cork, and engineered hardwood flooring. It can also be used to install plywood, ceramic tile, marble, cork underlayments, and stone inlays for residential and commercial applications.
- LEED v4 Certified
- Non-slump formula
- Excellent bond strength
- Outstanding green grab
- Mold & mildew resistant
- Extremely rapid cure rate
- Highly moisture-resistant
- Unaffected by freezing temperatures
- Fast strength development saves time
- Unlimited moisture control protection
- Product is FloorScore® certified by SCS
- Formulated for wood flooring installation and sound control
- 100% solids advanced polymer formula – No water or solvent
- One coat application process to achieve full all-in-one performance
- Achieves IIC rating of 69 and STC rating of 67 for sound performance
SUBFLOOR PREPARATION :
- All substrates must be clean, dry, structurally sound, properly cured and free of dirt, oil, paint, old adhesive, wax, sealers and curing agents.
- Sanding/Scouring with 20 grit open-coat sandpaper will remove most compounds.
- All loose materials must be vacuumed from the surface after scouring.
- The subfloor must be flat to a tolerance of 3/16” in a 10’ radius.
- Grinding concrete floors is preferred over the use of filling compounds.
- If filling/flattening compounds are used, they must be Portland cement based and have a compressive strength equal to or greater than 3000 psi when cured.
- Moisture level in concrete subfloor will fluctuate.
- Any cementitious material used must be rated for the highest moisture content possible. Consult the cementitious material manufacturer’s application directions.
INSTALLATION :
- This product must be installed using the “wet lay” method.
- This product cures and builds strength very quickly.
- Do not trowel more adhesive than can be installed within 30 minutes.
- Use recommended trowel for installation (see trowel recommendations).
- Begin laying the wood flooring immediately after the adhesive has been troweled.
- The wood flooring should be installed immediately into the wet adhesive.
- Planks which are not flat should be weighted for several hours.
- Normally, ultimate strength will be reached within 24 hours.
- Wait at least one day before finishing an unfinished floor.
- Do not walk on the floor during installation.
OPEN TIME :
35-45 minutes depending on exposure to moisture and temperature.
TOOL CLEANING :
Immediately after use with water or mineral spirits.
COVERAGE :
30 to 65 ft2 / gallon depending on trowel used.
STORAGE :
1 year in tightly closed container stored above 60°F (15.5°C).
