Flex Paste Industrial Sealant, Thick Rubber Paste, 8.75 fl oz, Black
Flex Paste Industrial Sealant, Thick Rubber Paste, 8.75 fl oz, Black
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Flex Paste Industrial Sealant, Thick Rubber Paste, 8.75 fl oz, Black

4.1 stars out of 1296 reviews
(4.1)|
1,296 ratings
Flex Paste Industrial Sealant, Thick Rubber Paste, 8.75 fl oz, BlackFlex Paste Industrial Sealant Thick Rubber Paste 8 75 fl oz BlackFlex Paste Super Thick Rubber Paste 1 lb ClearFlex Paste Super Thick Rubber Paste 8 75 fl oz White
Actual Color:Black

Key item features

  • Versatile Applications: Fix cracks and holes, foundation and concrete repair, bath and shower repair, roof repair, RV and motorhome repair, auto and boat repairs, lawn and garden projects, and more.
  • Durable Coating: Starts as a thick paste and dries to a strong, flexible rubber coating that won't shrink or wash away.
  • Indoor & Outdoor Use: Suitable for both indoor and outdoor projects, including sealing out rodents and pests.
  • Multi-Surface Compatibility: 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 more.
  • Paintable Finish: Can be painted any color after drying, allowing for customization to match any project.
  • Waterproof Application: Can be applied on dry or wet surfaces, even underwater, ensuring versatility in various conditions.
  • Compact Dimensions: Product dimensions are 3 x 3.4 x 4.7 inches, and it weighs 1 pound, making it easy to handle and store.
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Current price is $7.85
Price when purchased online
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Columbus, 43215
Arrives by Wed, Feb 25
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Sold by WB Supply Co.Pro Seller
Fulfilled by Walmart
4.2727272727272725 stars out of 5, based on 11 seller reviews(4.3)
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Customer ratings & reviews

4.1 out of 5 stars
stars1,296 ratings834 reviews
How item rating is calculated
  1. 5 stars64% (823)
  2. 4 stars12% (155)
  3. 3 stars7% (94)
  4. 2 stars4% (54)
  5. 1 star13% (170)

Reviews summary

Pros
  • : Forms a strong coating that seals out air, water, and moisture.
  • : Fills large gaps with a strong, flexible seal.
  • : Application process is straightforward and effortless.
  • : Forms a secure barrier to prevent liquid escape.
Neutral
  • : Can be a great value, but also feels overpriced to some.
  • : Can be easy to use and resealable, but also prone to damage or drying out.
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Showing 1-3 of 834 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?40Z3T6QHW6C0669440906
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?40Z3T6QHW6C0669440906
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

Dec 5, 2025
romieb3_8808
5 out of 5 stars review

Used it on everything!

[This review was collected as part of a promotion.] Flex Paste Clear really lives up to the hype — my dad used it on everything, and it actually worked. It dries clear, creates a super strong waterproof seal, and holds up great over time. Whether it was fixing leaks, sealing cracks, or quick home repairs, this stuff handled it all. Definitely a must-have for any toolbox.

Review from influenster.com
Helpful?40Z3T6QHW6C0669440906