Flex Paste Super Thick Rubber Paste Sealant, 8.75 fl oz, White
Flex Paste Super Thick Rubber Paste Sealant, 8.75 fl oz, White
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Flex Paste Super Thick Rubber Paste Sealant, 8.75 fl oz, White

1,437 ratings
Flex Paste Super Thick Rubber Paste Sealant, 8.75 fl oz, WhiteFlex Paste Super Thick Rubber Paste 8 75 fl oz WhiteFlex Paste Super Thick Rubber Paste 1 lb ClearFlex Paste Industrial Sealant Thick Rubber Paste 8 75 fl oz Black
Actual ColorWhite

Key item features

  • Dries into a strong, flexible rubber that expands and contracts with the surfaces
  • Can be applied on dry or wet surfaces, even underwater
  • Will not shrink, crack or peel and once cured, it can be painted any color
  • Works on wood, glass, tile, concrete, metal, brick, and so much more
  • Adhesive form: White Paste Sealant

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Customer ratings & reviews

4.1 out of 5 stars
stars
1,437 ratings850 reviews
How item rating is calculated
  1. 5 stars64% (922)
  2. 4 stars11% (164)
  3. 3 stars7% (101)
  4. 2 stars4% (60)
  5. 1 star13% (190)

Reviews summary

Pros

  • : Forms strong seal on various surfaces.
  • : Withstands pressure and temperature changes.
  • : Forms strong, watertight seal in cracks and holes.
  • : Forms a strong seal to prevent water leakage.
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Showing 1-3 of 850 reviews

May 10, 2020
RedDog
5 out of 5 stars review

Seller Verified Purchase

Flex Paste - Fixes Shower Tub/Leak

We've had an on-going problem with our 20 year old fiberglass/gelcoat shower/tub. The leak started as a small hairline crack in the bottom and has grown to 2-3". Over the last 3 years I've patched it twice with the Gelcoat Repair Kits which last a while, but begin leaking again. I did some research and decided to give Flex Paste a try. I covered the leaking area with Flex Paste and have been leak free for a couple of weeks. It seems like a solid repair and we'll see how long it lasts. I like that I can spread the Flex Paste well beyond the crack.

Review from flexsealproducts.com
Helpful?40Z3T6QHW6C0534825972
reply from Flex Seal Family of Products Customer Care

Flex Paste is incredibly durable and we're confident that your bathtub will be leak-free for many years. Please feel free to message us directly by email if you have any questions (Humans@FlexSealProducts.com). Thank you so much for sharing your experience with us. Flex On!

Nov 26, 2022
DJ Shawn
5 out of 5 stars review

Seller Verified Purchase

Coated Rusting Support Steel

I have a salt water pool and the coping support steel at the catch basins was rusting and flaking into the pool. I used flex paste to coat and seal it. Problem solved! #Flextacular

Review from flexsealproducts.com
Helpful?40Z3T6QHW6C0534825972
reply from Flex Seal Family of Products Customer Care

Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Seal Family of Products is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On

Nov 12, 2025
Guierrmo
Item details
Color: Black
Sold byMW, N & CoDelivered byWalmart
4 out of 5 stars review

Verified Purchase

Flex Paste Black review

I wish the cure time was faster. used to repair large hole in plastic fender liner on older Honda Civic. Ended up putting 2 layers on over period of 2 days.

Helpful?40Z3T6QHW6C0534825972
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