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4.3 out of 5 stars. 708 reviews
A woman outside with a dog
A woman outside with a dog

Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant

  • Online Only

Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant

Item # 1929440

Flex Seal Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant
Flex Seal Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant

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  • Online Only

Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant

Item # 1929440

Flex Seal Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant
Flex Seal Flex Seal Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multi-Purpose Sealant

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FLEX PASTE is a super thick rubberized paste that you can spread, shape, form, and seal virtually everything. It starts out as a thick paste and dries to a strong, flexible, rubber coating that can be applied to all types of surfaces to seal out air, water, and moisture. It clings to the surface and instantly fills large gaps, cracks, and holes. It won't shrink or wash away and can be painted any color. Can be applied on dry or wet surfaces, even underwater! Available in white and black. In Tubs and Cartridges.Flex Paste 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. Available in 9 oz. caulk gun cartridge, 1 lb. large Jar, 3 lb. x large Tub, 6 lb. Jumbo Tub, 12 lb. Giant Tub.

  • Fixing cracks and holes
  • Foundation and concrete repair
  • Sealing out rodents and pests
  • Bath and shower repair
  • Indoor and outdoor projects
  • Roof repair
  • RV and motorhome repair
  • Auto repairs
  • Boat repair
  • Lawn and garden projects

Q&As

1 - 1 of 1 Question

Q: You advertise 1 lb but you show 4 cans. What actually are you getting? One 1 lb can or four 1 lb cans?

a month ago
1 Answer
  • A: Hi consumer! This is four 1 lb cans.
    a month ago
    Helpful?

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Reviews

Rating Snapshot

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463 reviews with 5 stars.
105 reviews with 4 stars.
58 reviews with 3 stars.
26 reviews with 2 stars.
56 reviews with 1 star.

Overall Rating

4.3
352 out of 379 (93%) reviewers recommend this product

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Summary of Reviews

AI-generated from customer ratings & reviews, and may include incentivized reviews.
The product is effective, easy to use, and versatile for a range of household repair and sealing applications. Customers praise its ability to fix leaks, cracks, and holes on various surfaces, and report it forms a strong, waterproof seal. The paste is described as durable and fast-drying, though so...
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1 to 4 of 708 Reviews .
1 – 4 of 708 Reviews
Review 1

Works great!

10 days ago
I had a huge crack in my pool steps and this Flex paste worked perfectly! It sealed the crack while being flexible when we step on it to not crack more. The paste went on easily and filled the crack. After seeing how easy it filled the crack I remembered that I had muck boots that had a huge cut in them. It filled it perfectly! My husband is going to add a layer of black spray paint so it blends in more. I was shocked at how well it sealed everything!

Originally posted on flexsealproducts.com

Review 1

Flex paste

14 days ago
We gad a gap in a previous outdoor project that we wanted to close to keep the pipe from slipping. Easy to apply with spatula but alittle sticky. Couldn't get a smooth finish due to the shape of the project. Didn't notice a strong smell. Seems to work well so far.

Originally posted on flexsealproducts.com

Review 1

Great product!

15 days ago
It bonds easily. I used it for my bathroom and it worked. No strong odor, it has a very good texture to it. It covered up the small spot I needed to be fixed.

Originally posted on flexsealproducts.com

Review 1

Rubber

17 days ago
We love to use the flex paste thick rubber paste throughout the house for diffrent projects. It is wonderful for holding things together without compromising the sturdiness.

Originally posted on flexsealproducts.com