Flex Seal Aerosol Liquid Rubber Sealant Coating, 14 oz, Clear
Flex Seal Aerosol Liquid Rubber Sealant Coating, 14 oz, Clear
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Flex Seal Aerosol Liquid Rubber Sealant Coating, 14 oz, Clear

4.4 stars out of 3199 reviews
(4.4)|
3,199 ratings

Key item features

  • Rubberized Coating: Dries to a watertight, flexible, rubberized coating that effectively seals and protects surfaces, stopping leaks quickly.
  • Versatile Application: Works on a wide range of materials including wood, metal, concrete, glass, and plastic, offering broad utility for various repair needs.
  • Durable Flexibility: Stays flexible and seals out water for years, providing long-lasting protection and can be painted any color for aesthetic integration.
  • Easy Spray: Applied as a thick liquid spray, it seeps into cracks and holes, making application simple and efficient for sealing imperfections.
  • Common Uses: Ideal for fixing leaky roofs, gutters, RVs, skylights, vent pipes, hose and PVC pipe repairs, and sealing windowsills.
  • Application Guidance: For best results, apply multiple, even coats from 8 to 12 inches away, ensuring the surface is clean, dry, and free of grease.
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About this item

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Customer ratings & reviews

4.4 out of 5 stars
stars3,199 ratings1,410 reviews
How item rating is calculated

Reviews summary

Pros
  • : Application is straightforward with a paint brush.
  • : Forms a secure seal on various surfaces.
  • : Repairs leaks quickly.
Cons
  • : Product's cost is not justified by its amount.
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Showing 1-3 of 1,410 reviews

Mar 11, 2025
ReaderofFinePrint
Top Reviewer
Item details
Color: Black
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Sealed back of rug

I bought this to try to salvage a rug that i love. Its an indoor/outdoor type with a rubbery backing, originally. The upper part still looked good but underneath it was crumbling. Whenever the rug was moved, it left a pile of rubber dust. I cleaned the rug well and gave the back about three coats of Flex Seal. The rug is flexible and stays clean now.

Helpful?2a6fd1c0-d40d-11f0-b4b6-85abfc26e417177533195
Apr 6, 2025
Thinsport
Top Reviewer
Item details
Color: White
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Stopped the dripping

Thank you for providing the lowest price on Flex Seal. In a house I own, the sink material is connected to the entire countertop, and I'm not ready to replace it, as that would necessitate replacing the countertops as well. However, the sink is very old and has become porous, which is causing it to leak. I need to seal it to stop the leaks.

Helpful?2a6fd1c0-d40d-11f0-b4b6-85abfc26e417177533195
Dec 2, 2025
Alan
Item details
Color: Clear
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Sealed Out Critter Who Damaged SUV Hood Insulation

Obviously everyone who has watched TV has seen this product. I just used it since I noticed a rodent (maybe a squirrel)chewed away the insulation under the hood of my SUV. The fabric was torn and the little nuisance also chewed away at some of the firewall insulation. I used this to seal up all of the damage it caused. I sprayed 2 applications and hopefully this will work. I hope this llttle guy moved out to find a better home for the winter.

Helpful?2a6fd1c0-d40d-11f0-b4b6-85abfc26e417177533195