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8.75-fl oz White Paste Waterproof Rubberized Coating

Ratings & Reviews for Flex Paste 8.75-fl oz White Paste Waterproof Rubberized Coating

3.9
1377
Review
 3.9 out of 5
1378 Reviews


76% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers praise this waterproofing paste for reliably stopping leaks on roofs, pipes, gutters, and outdoor structures with lasting results. Most appreciate its ease of application, quick drying time, and strong adhesion to wet or dry surfaces. However, some report receiving hardened or partially filled containers, and a few find it difficult to sand or experience reappearance of leaks. Despite packaging concerns, most customers consider it an effective solution for household and outdoor sealing needs.

Customer review summary generated by AI, including incentivized reviews.
1378 Customer Reviews

Would Not Recommend

not that great.. doesnt seal good

June 29, 2026
Verified Purchaser
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Rubbery

super sticky but once dries rubbery

June 25, 2026
From 8.75-fl oz Black Paste Waterproof Rubberized Coating Verified Purchaser
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👍🏻

Would Recommend
June 22, 2026
From 9-fl oz Clear Paste Waterproof Rubberized Coating Verified Purchaser
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Great adhesive/sealant

Would Recommend

Awesome product! Works great as an adhesive as well as sealing whatever gap you’re filling. Can be a little messy but worth the cleanup.

June 21, 2026
From 48-fl oz White Paste Waterproof Rubberized Coating Verified Purchaser
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Trust it

Would Recommend

Works

June 20, 2026
From 48-fl oz White Paste Waterproof Rubberized Coating Verified Purchaser
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Flexible and waterproofing!

Would Recommend

Loved the flexibility of the “goop” as it is useful for many things. I used it to plug flower pot holes to make them into bird baths with solar fountains.

June 19, 2026
From 8.75-fl oz Black Paste Waterproof Rubberized Coating Verified Purchaser
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Great for convertible top repair!

Would Recommend

I like the product for its adhesive and flexible properties. I used it to repair an automobile convertible too that had ripped at the seam. I quickly was able to close the seam opening and went ahead and resealed the back window at the same time. After curing, it works better than I imagined. Great product.

June 17, 2026
From 9-fl oz Black Paste Waterproof Rubberized Coating Verified Purchaser
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Precision application

Would Recommend

I liked that it's in a tube making it easier for precision application. Stopped leak.

June 14, 2026
From 9-fl oz Black Paste Waterproof Rubberized Coating Verified Purchaser
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Works well

Would Recommend

Fast drying

June 14, 2026
From 48-fl oz Black Paste Waterproof Rubberized Coating Verified Purchaser
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Best or the flex seal products

Would Not Recommend

Product is very thick and sticky, wear gloves, fills in gaps really well. Not too impressed with the flex seal, but the paste is great.

June 12, 2026
From 48-fl oz White Paste Waterproof Rubberized Coating Verified Purchaser
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Thick

This product is very thick. It has to be applied with a putty knife. I’m hoping it does what it claims. So far so good!

June 12, 2026
From 48-fl oz White Paste Waterproof Rubberized Coating Verified Purchaser
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Flex Paste un-usable

Would Not Recommend

Received in a timely manner and in sealed perfect condition. Seems it has been in stock at Lowes and has expired. The canister was nearly completely dried up. There was a small spot in the middle of the canister that was still soft enough to use.

June 11, 2026
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Response from Customer Service

Hi there. Your feedback is much appreciated, as it is our greatest resource. We're sorry to hear you received cured product and completely unders...

Customer ServiceJune 12, 2026

FlexSealProducts

a proper real water proof seal.

it is my go to for all dos!!!!!!

June 8, 2026
Verified Purchaser
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