Elastomeric Roofing - TOPCOAT Precote

Precote



Description

TOPCOAT® Precote is a clear, solvent-based thermoplastic liquid to be applied as the primer/sealer coat on any areas of corrugated asbestos (Transite) panels. Precote is extremely flexible and durable. Like all solvent-based products, the surface must be completely free of moisture before application.


Uses

Precote is a required step for treatment of corrugated asbestos panels providing optimum adhesion of TOPCOAT® Elastomeric Roofing Membrane. After application of Precote, the surface will be slightly tacky and will provide an excellent base for the application of TOPCOAT®. Do not apply at temperatures below 42°F. Substrate temperatures must be below 120°F when applying product.


Advantages
  • Excellent primer and sealer for all areas of Transite panels

  • Used to bind loose and friable surfaces

  • Will leave the roof surface “tacky” and ready to provide a solid substrate for adhesion of TOPCOAT® Elastomeric Roofing Membrane

For application questions, please contact GAFMC Contractor Services at
1-800-766-3411.

Note: Repair leaks promptly to avoid adverse effects, including mold growth

TOPCOAT® Precote Technical Data
Application Rate: 0.75 to 1 gallon/100 sq. ft. per coat
Application Method: Roller or brush
Application Temp (air, surface): 42°F – 120°F
Drying Time (75°F, 50% RH): Approximately 30 minutes
Wet Mil Thickness: 12-16 (0.012" - 0.016")
Dry Mil Thickness: 3-4 (0.003" - 0.004")
Total Solids (by weight): 28.4% ± 1%
Total Solids (by volume): 24% ± 1%
Specific Gravity: 0.86 g/cc
Weight per Gallon: 7.2 ± 0.5 lbs
Viscosity (75°F): 200 ± 100 cps
Tensile Strength: 100 psi
Storage: Store in well-ventilated area at 50°F to 80°F; protect from freezing
Shelf Life: 1 Year
Clean-up: Xylene, Toluene

Note: Follow all EPA regulations concerning asbestos
Be sure to consult the TOPCOAT® Roof System Solutions Specifications Manual for more detailed information.

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