FlashSeal Elastomeric Flashing Sealant

Stops chimney leaks at the base of the chimney

FlashSeal is a versatile and easy to use flashing repair system that, when dry, forms a flexible waterproof membrane. It’s formulated for permanent adhesion to asphalt shingles, metal flashings, brick, and other chimney and roofing materials. Use FlashSeal to solve problem leaks around the base of chimneys, stacks, and vents. It is also great for sealing around skylights.

Repairing flashings that have been tarred over, split, cracked, or are in disrepair is easy with FlashSeal. It’s like installing a custom fit rubber boot at the base of the chimney! It remains permanently flexible and has a 7 year warranty when used with FlashSeal Reinforcement Fabric.

For complete chimney protection, we recommend waterproofing the chimney and sealing the chimney crown.

  •   7 Year Warranty
  •   Stops Leaks Around Chimney, Stacks, and Vents
  •   Stays Flexible Over Time
  •   Available In Black, Brown, and White
  •   Easy Brush-on Application
  •   Soap And Water Clean-up
  •   Coverage Rate: Approx. 28 linear feet
  •   Available Sizes: 1 gal. gallon containers
  •   Application Temperatures: Minimum 45° F
  •   Application Method: Brush
  •   Dry Time: 12 hours of dry, clear weather for proper curing
  •   Cleanup: Soap and water while product is still wet
Size Approx. Weight Product Code UPC #
Black 1 gal. pail 14 lbs. 300049 709057740012
Brown 1 gal. pail 14 lbs. 300050 709057740111
White 1 gal. pail 14 lbs. 300051 709057740210
Reinforcement Fabric (case of 12) 13 lbs. 300052 709057441506
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