Thursday, November 5, 2026 · Customer reviews of US businesses
The Fair Hearing score
Bad
77 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Flex Seal Products is a company specializing in adhesive bonding products, encompassing the Flex Seal, Flex Shot, Flex Tape and Flex Glue products.
Flex Seal (flexsealproducts.com) has 77 customer reviews on The Fair Hearing, with an average rating of 1.6 out of 5.
77 approved reviews, newest moderated first
Not as easy as advertised. It works for small jobs but read the instructions and have lots of paper towels ready. Even in the lowest (min. ) setting if you depress the trigger hard it comes out way fast. I found the settings don’t matter it’s trigger control that dictates volume. It does clean up well with a dry wipe.
By Paul H.
⁸7Flex seal rubber spray. I live in Northern California on 2 miles from the ocean, very mild climate usually 65f. I sprayed this on the seams of a small metal carport that has leaky seams. When it rained it was leaking worse. I went up to add another coat two months later and was disappointed to see that this stuff was all dried up cracked and crumbling. There were big holes in it where the stuff had crumbled away and created pockets for the water to accumulate thus making the leaky roof worse. I did try to contact them by phone but was left on hold way to long. I couldn't get their email to take any message unless I wanted to order or FAQ. We are very unhappy with this useless product. I rate this product a -5 ☆
By Steve C.
Flex Seal commercials should have a disclaimer stating that they are being presented strictly for entertainment or amusement purposes only. For example, there was one where Phil Swift was standing near some kind of large clear, probably acrylic, cylindrical container filled with water to demonstrate the amazing effectiveness of Flex Tape. So, naturally, when the water suddenly started pouring rapidly out of the side of this container, Phil simply took hand-sized piece of Flex Tape and then, kind of like a salmon swimming upstream to spawn, pushed upwards through the stream of water water, tape still in hand, and slapped it over the source of the leak; it stopped instantly! Unfortunately, when a 56 gallon aquarium of mine, that had been damaged during the move to my new home, suddenly sprung a leak, Flex Tape failed miserably, which is an understatement! In short, Flex Seal adds should be classified as “marketing entertainment” and, similar to watching WWE Sports Entertainment, don’t believe everything you see!
By Allen M.
What a crock of shit! Thiz stuff is EXPENSIVE and does not eork worth a crap! I used it to TRY to seal small leaks on an aluminum boat and it failed drastically. I used an excellent grade cleaner/degreeser, vut the crap still peeled like a bananna peeling once set. DO NOT BUY. Find a better way to fix your leaks. Over $100 spent with piss poor results!
By guess W.
Had to use spray flex seal as a shattered window temporary fix instead of duct tape So far great product if it fix a boat It will fix a shattered window.
By Nito
Flex seal tape says waterproof. Not so . Wanted to cover some screw heads on my pool ladder . Saw the commercials and thought it would get the job done. Nope. Tried it to put it on pvc pipe and didn’t even begin to hold .
By David
Total crap ! Paid $30 for flex tape today ! Says it stops a leak instantly! TV adds are also false advertising ! ACE hardware won't refund my money ! Terrible product!
By Terry P.
Your product sucks, I have put three coats on a leak and it's still leaking, it's pathetic
By Donald J.
