
Ratings & Reviews for Flex Paste 9-fl oz Black Paste Waterproof Rubberized Coating
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers praise the product for reliably stopping water leaks and sealing cracks in roofs, bathtubs, windows, and basements, with many reporting successful repairs and planning repeat purchases. However, a substantial group encountered hardened, dried, or unusable paste upon opening, with some finding half the container unusable. Others describe application challenges, noting it spreads thickly, adheres poorly to surfaces, or dries too quickly. Despite these consistency and usability concerns, most customers who received functional product consider it effective for home repairs.
Customer review summary generated by AI, including incentivized reviews.Flex paste
Would RecommendGood product for the money
Top of Tube Already Gelled
Would Not RecommendWhen I opened this and went to use it, I couldn't even get a flow started, even though I used both hands on the caulking gun handle. I pulled the tip and probed with a screwdriver. It appears that the top of the tube was already mostly set.
Seal gutters
Would RecommendSealed our gutters great. Been fighting leaks for awhile now. No more leaks. Great product!
From 8.75-fl oz Black Waterproof Rubberized Coating Verified Purchaser
Worked great. Fixed a leaky drain pipe
Would RecommendWorked great. Fixed a leaky drain pipe
Verified Purchaser
Do not buy
Would Not RecommendIt was dry and ddid not work cost $45.00
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... Read More

ease of use.
Works good
Would RecommendCaulking
Verified Purchaser
Great rubber content. Fantastic!
Would RecommendGreat consistency and ease of use.
Verified Purchaser
Perfect
Would RecommendI will try this out on an area that has been leaking.
Rubbish
Would Not RecommendI had purchased 3 lb plastic tub from Lowes. It had been sitting in a heated room for the last several months. I finally opened it up today and found that the paste was not longer a paste, but a large mass of a black rubbery material. Do not purchase if in the plastic container.
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... Read More

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... Read More