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Master Bond adhesives

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Sika SikaBond® T21 All-in-One Wood Flooring Urethane Adhesive, Moisture Vapor and Sound Reduction Membrane
Categories: Polymer; Adhesive; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced

Material Notes: SikaBond-T21 is a one-component, low VOC, permanently elastic, super strong, very low permeability moisture-cure polyurethane adhesive, vapor retarding, crack bridging and sound reduction membrane all-in-one for full surface wood floor bonding.

Where to Use: SikaBond-T21 may be used for solid and engineered wood floors (strips, longstrips, planks, panels, boards), mosaic parquet, industrial parquet, wood paving (residential) as well as chip boards and plywood. Once cured, Sikabond-T21 will generate a super strong bond to a variety of substrates for glue down installations and at the same time form a membrane which reduces moisture vapor transmission from the subfloor and sound reduction membrane.

Advantages:

  • 270% elongation
  • Extremely easy to trowel
  • Crack bridging
  • Low odor
  • Excellent Green Grab
  • Suitable for common types of wood flooring
  • Creates sound reduction layer
  • Especially good for problematic woods such as beech and bamboo
  • Contains no water
  • Bonds solid wood flooring up to ¾” thick and 8“ wide, and engineered planks up to 14“ wide directly to concrete without length limitations.
  • Eliminates sleepers and plywood over concrete and gypsum substrates
  • Permanently elastic – allows planks to expand and contract without damage to the adhesive
  • Tenacious bond

Information provided by Sika Corporation.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 1.18 g/cc
Volatile Organic Compounds (VOC) Content 57 g/l
Water Vapor Transmission <= 0.400 g/m²/dayASTM E96
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 50after 28 days
Tensile Strength 150 psi
Elongation at Break 270 %50% RH
Shear Strength 150 psi1 mm adhesive thickness at 73°F (23°C) and 50% RH
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 158 °F
Minimum Service Temperature, Air -40.0 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 6.00 - 8.00 hourFloor may accept light foot traffic at 45-50 SF/gal (P5 trowel)
 12.0 hourFloor may accept light foot traffic at 30-35 SF/gal (SC+MB trowel)
 45.0 - 60.0 min50% RH, Skinning/Laying time
 24.0 hour
@Thickness 4.00 mm,
Temperature 23.0 °C
50% RH
Shelf Life 12.0 Month
@Temperature 10.0 - 25.0 °C
in original unopened cartridge
 
Descriptive Properties
Chemical Base1-component polyurethanemoisture curing
ColorLight brown

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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