Bostik Ultra-Set HardWood Premium Wood Flooring Urethane Adhesive
Application Type Bond 1 Part or 2 Part 1-Part Material Form Liquid Substrate Acrylic, Ceramic, Vinyl, Cement, backer board,, Concrete, Terrazzo, Chip Board, PlyWood, Wood Manufacturer Bostik Chemistry Urethane Application Method Trowel Cure Method Moisture, Heat Application Temperature (°F) 50 to 100 Cure Time (min) 480 to 600, 1,440 Viscosity (cPs) 110,000 Color Light Gray, stone High Temperature Resistance (°C) 66 Low Temperature Resistance (°C) -29 Durability Tough Density (g/cm³) 10.03 (weight (lbs/gal))
Technical Data for Bostik Ultra-Set HardWood Premium Wood Flooring Urethane Adhesive
Application Temperature (°F) 50 to 100 Cure Time (min) 480 to 600, 1,440 Open Time Temperature (°C) 21 Viscosity (cPs) 110,000 Open Time (min) 240
General Bond Strength (psi) Tenacious Peel Strength (piw) 26, 41, 29, 40 Test Method Shear Strength (psi) >1,000, >1,200, >1,500 Test Method Tensile Strength (psi) 143 Test Method
High Temperature Resistance (°C) 66 Low Temperature Resistance (°C) -29
Durability Tough Elongation (%) 380 Test Method Flexibility Flexible Modulus (psi) 143 Test Method
Flash Point (°F) 126.0 Test Method % Solids (%) High Density (g/cm³) 10.03 (weight (lbs/gal))
Shelf Life Details Store in clean, dry, warm area to ensure ease of application. Shelf life is nine months from the date of manufacturing.TO RE-SEAL PARTIALLY USED CONTAINERS Close Container:Cover opened pail with 2 pieces of plastic. Secure lid tightly to pail. Carefully turn pail upside down (the 2 pieces of plastic act as “bond breakers” preventing the adhesive from bonding the lid shut)., Re-Open Container: Carefully turn pail right-side-up. Remove lid. Carefully cut and discard cured adhesive and plastic from top of pail. Any uncured material may be used. Shelf Life Type From the date of manufacturing Shelf Life (mon) 9
Not Good For
Don't Use With wet, contaminated, or friable substrates., concrete treated with sealers or curing compounds.
Best Practices for Bostik Ultra-Set HardWood Premium Wood Flooring Urethane Adhesive
Surfaces must be clean, dry and smooth
free of voids, projections, loose materials, oil, grease, sealers and all other surface contaminants. If there are any moisture-related concerns, or if solid wood is being installed, completely remove cutback adhesive residue by sandblasting, shotblasting or scarifying. When sandblasting, shotblasting or scarifying, surface texture must be similar to light broom finished concrete. The Blastrac shotblasting method of surface preparation utilizing BT#1, BT#2 or BT #3 (.017" to .028" diameter) shot is recommended. Maximum acceptable floor variation is 1/8" in 10 feet. Surface areas requiring patching or leveling should be done using a portland cement based material (contact Bostik’s Technical Service Department for recommendations).
Ensure starter rows are firmly in place by wedging or face nailing. Once initial rows are secure, use adhesive in a Wet-Lay method of installation. As you work, immediately clean any adhesive on pre-finished flooring with a soft cloth and mineral spirits. (Be careful not to harm finish.) If adhesive is cold, place pail in either a warm area or bucket of warm water to improve workability. WET-LAY METHOD: Apply adhesive to substrate with suitable trowel. Immediately place flooring onto “wet” adhesive.
Keep from light-foot traffic until adhesive is fully cured
usually 8 to 12 hours.
Once cured this is the most tenacious adhesive known to the hardwood industry. Immediately clean any adhesive on pre-finished flooring with a soft cloth and mineral spirits. (Be careful not to harm finish.) Do not allow mineral spirits to sit on hardwood surface. Clean tools and equipment with mineral spirits before adhesive cures. Wear rubber gloves when using adhesive. Removal of cured adhesive from pre-finished flooring, skin, tools and equipment is extremely difficult. Use Bostik #94 Hand Cleaner for removal of uncured adhesive on skin.
TROWEL CLEAN-UP TIP: Before use, cover areas of trowel that are not used to spread adhesive with clear packaging or gray duct tape. After use, simply tear off tape before material cures. Clean remainder of trowel with a dry cloth or mineral spirits.
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Shear Strength Test Methods
|>1,000 psi||Concrete to 3/4” plywood|
|>1,200 psi||Concrete to 5/16” oak parquet|
|>1,500 psi||Concrete to 3/4” oak shorts|
Tensile Strength Test Methods
|Tensile Strength||Test Method|
|143 psi||Modulus at 100%|
Peel Strength Test Methods
|26 piw||dry to plywood|
|41 piw||dry to concrete|
|29 piw||wet to plywood|
|40 piw||wet to concrete|
Elongation Test Methods
|380 %||At Break|
Modulus Test Methods
|143 psi||Modulus at 100%|
Flash Point Test Methods
|Flash Point||Test Method|