Flex Seal Paste (12 lb, Black)


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In the box

Flex Seal Paste (12 lb, Black)

  • Flex Seal Paste (12 lb, Black)

From The Wavelength Blog Read more

Flex Seal Paste (12 lb, Black)

The Flex Seal Paste 12 lb tub starts as a thick paste and dries to a strong, flexible, rubber coating. It won’t shrink or wash away and can be painted any color. It can be applied on dry or wet surfaces, even underwater. The product is available in black and in Tub.


This product can be used to fix cracks and holes, foundation and concrete repair, seal out rodents and pests, bath and shower repair, indoor and outdoor projects, roof repair, RV and motorhome repair, Auto repairs, and boat repairs, and lawn and garden projects and much more.

Works On

It works on wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, fiberglass, ceramic, porcelain, natural stones, roofing, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes, and much more.

Flex Seal Paste

  • Size: 12 lb
  • Color: Black

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

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