SikaBond T-21 Urethane Adhesive

$179.99

Coverage: 30-80 sq. ft. per Gallon depending on trowel (see Spec. Sheet)
Solid Content: 100%
Size: 4 U.S. Gallons
Weight: 44 Lbs.

Call us Today! 602-796-2477

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SKU: SIK414788 Category:

Description

SikaBond T-21 Adhesive


 

sika logo

SikaBond-T21Adhesive

All-in-One Wood Flooring Urethane Adhesive, Unlimited Moisture Vapor and Sound Reduction Membrane

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.

Usage

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
  • Bonds up to 3/4″ solid and engineered wood
  • Extremely easy to trowel
  • Unlimited subfloor moisture vapor protection
  • No moisture testing required – a dry to touch substrate is the only requirement
  • 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
  • Eliminates sleepers and plywood over concrete and gypsum substrates
  • Permanently elastic – allows planks to expand and contract without damage to the adhesive
  • Tenacious bond

Packaging

4 gal. (15.14 L)

Color

Light Brown

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

LEED® EQc 4.1 (100 g/L limit) SCAQMD, Rule 1168 (100 g/L limit) BAAQMD, Reg. 8, Rule 51 (120 g/L limit)
passes passes passes

APPROVALS / STANDARDS

  • Independently tested to -STC 62 (ASTM E-90) (6 in. (168 mm) concrete slab, 5/8 in. (19 mm) suspended gypsum ceiling)
  • Reduction of Impact Sound Δ IIC = 21 (ASTM E-2179)

Sag Flow


Consistency: Spreads very easily

Ambient Air Temperature


Room temperature between 60 °F (15 °C) and 90 °F (35 °C). For ambient temperatures the standard construction rules are relevant. Follow all wood floor manufacturers’ acclimation and room temperature requirements.

Relative Air Humidity


Between 40 % and 70 % during installation is best for adhesive. See wood floor manufacturer for wood requirements.

Substrate Temperature


During laying and until SikaBond®-T21 has fully cured, substrate temperature should be greater than 60 °F (15 °C) and in case of radiant floor heating, less than 70 °F (20 °C). For substrate temperatures, the standard construction rules are relevant.

Substrate Moisture Content


For use as an adhesive and moisture membrane:
Concrete must be visibly dry. Inspect for any wetness at base of drywall or visible signs of moisture on concrete. Concrete and cement-based underlayments must be fully cured and free of any hydrostatic and/ or moisture problems. When properly applied in accordance with Sika® guidelines, SikaBond®-T21 provides unlimited moisture vapor protection.

 

For use as an adhesive only:
SikaBond®-T21 is not affected by moisture or vapor transmission. For protection of the wood, follow the wood floor manufacturer’s requirements for subfloor moisture. If substrate is not acceptable, use SikaBond®-T21 at recommended coverage rate as All-in-One or Sika® MB. See Technical Data Sheet for proper instruction.

 

Curing Rate

Floor may accept light foot traffic after:

  • at 45–50 SF/gal (P5 trowel): after 6–8 h
  • at 30–35 SF/gal (SC+MB trowel): after 12 h

(depending on climatic conditions and adhesive layer thickness)

Floor can be sanded after 18 hours

Skin Time / Laying Time

~ 45–60 minutes (at 73 °F (23 °C) and 50 % R.H.)

SEE ALL INSTALLATION MATERIALS

Visit Our Phoenix Showroom!

Additional information

Weight 44 lbs
Dimensions 12 × 12 × 12 in

Trim & Accessories

Underlayments

  • rubber-underlayment

    Eternity Underlayment – Acoustical Resonator Rubber 2mm

    $0.80 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 100
    Thickness: 2 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • eva

    Eternity Underlayment – Acoustical Ultra EVA 3mm

    $0.32 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 3 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • acoustic blue

    Eternity Underlayment – Acoustical Zero Slip 1.5mm

    $0.35 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 1.5 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • blue foam

    Eternity Underlayment – Foam Blue 2mm

    $0.17 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  1 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • blue foam

    Eternity Underlayment – Foam Blue 3mm

    $0.20 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  3 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • silver 1

    Eternity Underlayment – Foam Silver 2mm

    $0.20 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  2 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • silver 1

    Eternity Underlayment – Foam Silver 3mm

    $0.25 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  3 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • versapro 1

    Eternity Underlayment – VersaPro EVP 1mm

    $0.25 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 1 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • evp 1.5

    Eternity Underlayment – VersaPro EVP PLUS 1.5mm

    $0.30 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 1.5 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart

Maintenance

Installation Materials

  • crain knuckle bar

    Crain Knuckle Bar

    $25.69

    Length: 16.5″
    Weight: 3.25 lbs.

    Add to cart
  • rubber-underlayment

    Eternity Underlayment – Acoustical Resonator Rubber 2mm

    $0.80 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 100
    Thickness: 2 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • eva

    Eternity Underlayment – Acoustical Ultra EVA 3mm

    $0.32 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 3 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • acoustic blue

    Eternity Underlayment – Acoustical Zero Slip 1.5mm

    $0.35 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 1.5 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • blue foam

    Eternity Underlayment – Foam Blue 2mm

    $0.17 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  1 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • blue foam

    Eternity Underlayment – Foam Blue 3mm

    $0.20 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  3 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • silver 1

    Eternity Underlayment – Foam Silver 2mm

    $0.20 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  2 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • silver 1

    Eternity Underlayment – Foam Silver 3mm

    $0.25 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate
    Sq. Ft. Per Roll: 200
    Thickness:  3 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • versapro 1

    Eternity Underlayment – VersaPro EVP 1mm

    $0.25 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 1 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • evp 1.5

    Eternity Underlayment – VersaPro EVP PLUS 1.5mm

    $0.30 sq. ft.

    Construction: Underlayment
    Can be used with: Laminate, Vinyl, Engineered Hardwood
    Sq. Ft. Per Roll: 200
    Thickness: 1.5 MM

    Call us Today! 602-796-2477

    This calculator will add the recommended waste. if you already know your square footage please remember to add waste.
    We recommend adding 10%
    to your order for installation waste and repairs!

    Add to cart
  • eco980

    Mapei Ultrabond ECO 980

    $159.99

    Coverage: 30-95 sq. ft. per Gallon depending on trowel (see Spec. Sheet)
    Solid Content: 100%
    Size: 5 U.S. Gallons
    Weight: 70 Lbs.

    Call us Today! 602-796-2477

    Specs pdf-logo
    Safety pdf-logo
    V.O.C. pdf-logo
    Sustainability pdf-logo

    Add to cart
  • eco995

    Mapei Ultrabond ECO 995

    $189.99

    Coverage: 30-95 sq. ft. per Gallon depending on trowel (see Spec. Sheet)
    Solid Content: 100%
    Size: 5 U.S. Gallons
    Weight: 70 Lbs.

    Call us Today! 602-796-2477

    Specs pdf-logo
    Safety pdf-logo
    V.O.C. pdf-logo
    Sustainability pdf-logo

    Add to cart
  • sika construction adhesive

    Sika Construction Adhesive 12 oz.

    $7.49

    Coverage: 12 Linear Feet per Tube
    Size: 12 oz.
    Weight: 1 Lbs.
    Tubes Per Carton: 12
    Cartons Per Pallet: 105

    Call us Today! 602-796-2477

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    Safety pdf-logo

    Add to cart
  • sikabond 150

    Sikabond 150 Acrylic Adhesive PSA

    $109.99

    Coverage: 300-800 Sq. Ft. Per Gallon
    Size: 4 Gallon
    Weight: 40 Lbs.
    Pails per Pallet: 33 Pails

    Call us Today! 602-796-2477

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    Safety pdf-logo

    Add to cart
  • sika remover

    Sikabond Adhesive Remover Cleaner

    $16.99

    Coverage: N/A
    Size: 16 oz.
    Weight: 10.6 Lbs.

    Call us Today! 602-796-2477

    Specs pdf-logo
    Safety pdf-logo

    Add to cart
  • sikabond t-21

    SikaBond T-21 Urethane Adhesive

    $179.99

    Coverage: 30-80 sq. ft. per Gallon depending on trowel (see Spec. Sheet)
    Solid Content: 100%
    Size: 4 U.S. Gallons
    Weight: 44 Lbs.

    Call us Today! 602-796-2477

    Specs pdf-logo
    Safety pdf-logo

    Add to cart
  • sikabond T-25

    SikaBond T25 Urethane Adhesive

    $149.99

    Coverage: 30-80 Sq. Ft. per Gallon
    Size: 5 Gallon
    Weight: 50 Lbs.

    Call us Today! 602-796-2477

    Specs pdf-logo
    Safety pdf-logo

    Add to cart
  • sikabond t35

    SikaBond T35 Urethane Adhesive

    $199.99

    Coverage: 30-50 Sq. Ft. per Gallon
    Size: 5 Gallon
    Weight: 50 Lbs.

    Call us Today! 602-796-2477

    Facts pdf-logo
    Specs pdf-logo
    Safety pdf-logo

    Add to cart
  • sikabond t53

    SikaBond T53 Sausage

    $19.99

    Coverage: N/A
    Size: 20 oz.
    Tubes per Carton: 20
    Weight: 1.8 Lbs.
    Cartons per Pallet: 50 cartons / 100 tubes

    Call us Today! 602-796-2477

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    Safety pdf-logo

    Add to cart
  • sikabond t55

    SikaBond T55 Urethane Adhesive

    $229.99

    Coverage: 30-50 Sq. Ft. per Gallon
    Size: 5 Gallon
    Weight: 60 Lbs.
    Pails per Pallet: 27

    Call us Today! 602-796-2477

    Facts pdf-logo
    Specs pdf-logo
    Safety pdf-logo

    Add to cart
  • stanley bostich graphite mallet

    Stanley 59-OZ Graphite Mallet

    $78.99

    Length: 16.1″
    Weight: 3.7 lbs. (59-oz.)

    Add to cart
  • titebond tape

    Titebond Double Sided Tape Roll

    $18.99

    Size: 2″ x 40′

    Call us Today! 602-796-2477

    Titebond Tape Specs: pdf-logo

    Add to cart
  • valtech tapping block

    Valtech Wood Tapping Block

    $27.99
    Add to cart