FlexSeal Sealant


FlexSeal Sealant is a white solvent-based synthetic elastomeric sealant. FlexSeal Sealant is extremely flexible and durable.

Like all solvent-based products, the surface must be clean, completely free of moisture and residual contaminants before application. FlexSeal Sealant is extremely flexible and must be completely free of moisture before application.


FlexSeal Sealant is designed for use on metal, concrete, wood, copper, SBS, APP, EPDM, and BUR substrates. For use on all areas of roof substrates, including gutters and detail areas. Can be used for coldweather application.

Sizes Available

  • 11 oz bucket
  • 1 gallon bucket
  • 5 gallon pail


  • Extremely flexible and durable
  • Self-leveling; perfect on low-slope roof surfaces
  • Seals and restores existing pitch pans
  • Ideal for term bar, railing, step flashings, or edge metal
  • Durable and UV resistant; will not chalk, crack, or peel
  • Solvent-based sealant
  • Ideal for metal, concrete, plywood, copper, SBS, APP, EPDM, BUR, and TPO

Physical Properties

Application Rate
5 gallons/125@6”
Application Method
Trowel or stiff bristle brush
Application Temp (air, surface)
32° - 120°F
Drying Time (75°F, 50% RH)
Approximately 24 hours
Recommended Wet Mil Thickness
85 wet mils
Recommended Dry Mil Thickness
50 dry mils
Total Solids (by weight)
77% ± 2%
Total Solids (by volume)
66% ± 2%
Specific Gravity
1.24 ± 0.1
Weight per Gallon
10.3 ± 0.5 lbs
Viscosity (75°F)
600,000 ± 100,000 cps
LV - Viscosity (75°F)
150,000 ± 15,000 cps
Tensile Strength
485 psi ± 10%


All documents are U.S. English unless otherwise noted

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