Super thick rubberized paste clings to surfaces for strong, flexible sealing
Instantly fills large gaps, cracks, and holes to prevent leaks
Watertight, moisture-resistant, and mold-resistant coating protects against water and air
Cures underwater for versatile application in wet or dry conditions
UV and mildew resistant for durability in various environments
Summarized by Shop
Introducing the newest addition to the Flex Seal Family of Products. Flex Paste is a super thick rubberized paste that clings to the surface and instantly fills large gaps, cracks and holes. Once dry, Flex Paste turns into a strong, flexible, watertight, rubberized coating that seals out air, water and moisture. Our super thick formula wi