Flex Seal Liquid Rubber Sealant Coating, 32 oz, Clear
Flex Seal Liquid Rubber Sealant Coating, 32 oz, Clear
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Flex Seal Liquid Rubber Sealant Coating, 32 oz, Clear

472 ratings
Flex Seal Liquid Rubber Sealant Coating, 32 oz, ClearFlex Seal Liquid Rubber Sealant Coating 32 oz ClearFlex Seal Liquid Rubber Sealant Coating 32 oz Gray
Actual ColorClear

Key item features

  • Versatile Application: Thick rubberized liquid that you can brush, roll, dip, or pour for various uses.
  • Large Coverage: Ideal for covering large surface areas efficiently.
  • Durable Protection: Mildew, chemical, and UV resistant for long-lasting use.
  • Watertight Seal: Dries to a watertight, airtight, flexible, rubberized coating.
  • Multiple Uses: Suitable for roof and gutter repairs, ponds, basements, tools, vehicles, boats, DIY projects, and more.
  • Wide Compatibility: Recommended for surfaces like concrete, glass, wood, plastic, metal, and many others.
  • Weatherproof: Seals and protects surfaces from water, air, moisture, and extreme temperatures.
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Customer ratings & reviews

4.6 out of 5 stars
stars
472 ratings278 reviews
How item rating is calculated
  1. 5 stars77% (365)
  2. 4 stars12% (55)
  3. 3 stars5% (22)
  4. 2 stars1% (7)
  5. 1 star5% (23)

Reviews summary

Pros

  • : It stops leaks and restores gutter waterproofing.
  • : Can stretch and conform to various surfaces.
  • : Forms a robust seal when applied to cracks and holes.
  • : Fills small cracks and crevices.
  • : Application process is straightforward with a brush or pouring.

Cons

  • : Brushes retain material and need mineral spirits.
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Showing 1-3 of 278 reviews

Jul 2, 2025
Reviewer name: Carol
Top Reviewer
Item details
Color: Clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works great

It works and it's durable when dry. Used it on rusting pool rail. Coated well and stopped rust. Used in the bowl of decorative fountain. Stopped leaks. Useable again. Wish it wasn't so expensive. Great stuff.

Helpful?2HI39PO8XCHC52549060
Oct 14, 2025
Reviewer name: Emily
Walmart Associate
Item details
Color: Clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

cured fast even in overcast weather so far no leaks

Helpful?2HI39PO8XCHC52549060
Nov 15, 2024
Reviewer name: Angela
Top Reviewer
Item details
Color: Gray
Sold bySwift Response
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Flex Seal

I purchased this to seal the perimeter of my backyard shed. So far so good however I am waiting on a heavy rain, to see the results.

Helpful?2HI39PO8XCHC52549060
Current price is $34.87
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