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  • Weld-Crete® Concrete Bonding Agent
  • Weld-Crete® Concrete Bonding Agent

Weld Crete Concrete Bonding Agent 1 Gallon

$30.99
SKU: 71676220005
Weight:
10.00 LBS
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    Weld-Crete® Concrete Bonding Agent

    Weld-Crete® bonds new concrete, stucco, tile setting beds and terrazzo to any structurally sound surface, interior or exterior. Use Weld-Crete’s® open time to your advantage in bonding to concrete shear walls when you need a time lapse between application of bonding agent, placement of reinforcement steel, placement of formwork and placement of concrete.Weld-Crete

    The original chemical concrete bonding agent, Weld-Crete® incorporates polyvinyl acetate homopolymer in a patented formulation. For exterior and interior use, Weld-Crete® will bond new concrete, Portland cement plaster and cementitious mixes to structurally sound concrete floors, walls, columns, beams, steps and ramps. Weld-Crete®can be "painted on" in a single application 1 hour to 10 days prior to concrete placement. Use Weld-Crete’s® open time to your advantage in bonding to concrete shear walls when you need a time lapse between application of bonding agent, placement of reinforcement steel, placement of formwork and placement of concrete.

    Weld-Crete® is also used for: bonding setting beds for ceramic tile; bonding Portland cement plaster and stucco mixes; and to bond to surfaces such as brick, block, tile, marble, metal, glass block, soundly adhered paint (non-soluable in water, i.e. casien and calcimine paints), and silicone.

    Weld-Crete

     

    Plaster Weld Data Sheet in PDF

    Plaster Weld MSDS in PDF

    Plaster Weld Leed Information in PDF

     

    Performance Properties

    Data obtained from tests conducted periodically by leading independent laboratories. Test reports are available upon request.

    • Tensile Bond Strength:
      ASTM C 932-05 (pulling apart bonded cement briquet halves). In all cases failure occurred in the cementitious material, not in the bond. 385 psi. Avg. 28 days.
       
    • Flexural Bond Strength:
      ASTM C-78 (concrete beams laminated with bonding agent). 603 psi. Avg.
       
    • Shear Bond Strength:
      ASTM C-1059 (slant shear cylinder test). 740 psi. Avg. 14 days.
       
    • Temperature Range:
      ASTM C-109 (specimens brought to 35 degrees F for 1 hr., then to 310 degrees F for 2 hrs). No bond failure. Shear tests 400 psi. Avg.
       
    • Freeze-Thaw Stability:
      5 cycles freeze (-10 degrees F and thaw). Freeze-thaw stable.
       
    • Toxicity:
      Enclosed mice exposed to 30 cc volatized bonding agent for 1 hr. Non-toxic, no ill effects after 7 days.
       
    • Fire Resistance:
      ASTM E-119 (bonded assembly). Passed 2 hr. Fire Test 1800 degrees F and 1 hr. Hose Stream Test.
       
    • Flammability:
      Meets MIL-B-19235C, non-flammable.
       
    • Acid Resistance:
      1″ concrete slabs bonded to 1/2″ gypsum plaster subjected to seepage of strong detergents and synthetic urine for 10 hrs. a day. No bond failure after 25 consecutive days. Also unaffected by alkalinity of cement.
       
    • Life Expectancy:
      Lab tested and field proven. Non-deteriorating bond; retains strength and flexibility.

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