Flex Seal Liquid Rubber Sealant Coating, 1 Gallon, White
Flex Seal Liquid Rubber Sealant Coating, 1 Gallon, White
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Flex Seal Liquid Rubber Sealant Coating, 1 Gallon, White

4.4 stars out of 522 reviews
(4.4)|
522 ratings
Size:1 gal-Out of stock
Pack Size:Single-Out of stock

Key item features

  • Versatile Application: Thick rubberized liquid that you can brush, roll, dip, or pour
  • Watertight Seal: Dries to a watertight, airtight, flexible, rubberized coating
  • Large Coverage: Perfect for covering large surface areas
  • Durable Protection: Mildew, chemical, and UV resistant
  • Easy to Use: Seep into cracks and holes to form a flexible, waterproof, weatherproof rubberized seal
  • Multiple Uses: Ideal for roof and gutter repairs, ponds, basements, tools, vehicles, DIY projects, and more
  • Wide Compatibility: Suitable for concrete, glass, brick, wood, plastic, metal, and many other surfaces
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Current price is $114.96
Price when purchased online
Out of stock

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About this item

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Customer ratings & reviews

4.4 out of 5 stars
stars522 ratings350 reviews
How item rating is calculated

Reviews summary

Pros
  • : Forms a strong seal on various surfaces.
  • : Fills small cracks and crevices immediately.
  • : Application process is straightforward with a brush or pouring.
  • : Features a transparent or see-through quality.
  • : Forms a seal to stop leaks effectively.
Neutral
  • : Can be affordable, but also steep for certain features.
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Showing 1-3 of 350 reviews

Mar 28, 2025
Emmitt
Item details
Size: 1 gal
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Excellent Product

I recently bought an older RV 2008 that had significant water leaks from the roof. My nephew painted the penetrating and creases in the roof and stopped the leaks. I then had him paint the entire roof and I don't see any more leaks in the next couple of years!

Helpful?3P11UGR2HCIB54189332
Aug 16, 2025
Terry
Item details
Size: 1 gal
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Excellent product

Helpful?3P11UGR2HCIB54189332
Sep 29, 2025
anonymous
Item details
Size: 1 gal
Multipack quantity: 1
4 out of 5 stars review

Verified Purchase

Good but overpriced product

Product was very easy to use and did the job but the price tag is very overpriced. I found another comparable product after this purchase for $40 instead of $110. Wish I had seen that first.

Helpful?3P11UGR2HCIB54189332