Style: Gray, 14 oz, 2-Pack
I sealed my basement in minutes, no water leaks since then. Easy to use.
Reviewed in the United States on October 20, 2024 by Amazon Customer
Style: Almond, 14 oz, 2-Pack
Perfect product for around-the-house jobs.
Reviewed in the United States on November 13, 2024 by James W. Pillar
Style: Terracotta, 14 oz, 2-Pack
It’s a good sealer if you are on or above the roof, but not if you are under; it will drip. Apply to a small area at a time.
Reviewed in the United States on August 16, 2024 by Stef M
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How to get the best out of Flex Seal and products like it
Style: Compact
While not perfect for every application, Flex Seal actually does what it advertises. After reading a lot of the one star reviews, I can see there are a lot of problems with the way people are spraying the product on as well as issues with what is expected. Here are a few tips to get you the best resu
lts you can out of a product like this (there are many and they are all basically the same) 1. Choose the right kind of Flex Seal. This may seem obvious but there are several kinds of flex seal and they are all used for different things. I. First, the rubber patch/tape is used for large cracks and or holes where you have full access to the area around it. The tape is very thick and can sometimes be unruly. Lay it flat out, cut it, and then roll it while keeping tension on or slap it on like in the commercial. Do not think you are going to move it around and reposition it. You won't. It's a one shot deal for best results. The tape, size to be at least 3-4 times bigger than the hole you are trying to close up. The tape can handle the most pressure in the product line. You must have enough surface area for the tape to get a good grip around the hole if you plan for it to take any kind of real pressure. II. The roll-on stuff is great for large coverage where you want to get fancy putting on thicker and thinner coats here and there. It applies like a sticky paint. I would say that the paint is the most "accurate" because you will use a roller or a brush to put it on and you can make sharp lines, stuff more material in gaps really easily, and handle uneven surfaces nicely. III. The spray is for quick easy jobs as is the weakest under pressure. It's great for sealing things like sky lights, thin plastic objects, joints on gutters etc. Anything that won't see a lot pressure behind it. It's harder to put on thick, but if you apply it like spray paint you can do amazing things with it. Thin, even coats, in a sweeping motion, over and over again and you can cover just about anything. IV. The flex seal one shot caulking is really just like almost any rubber/silicon caulk. I've only used it once and was not all that impressed so I tend to stay away from this one and use 3M stuff instead. 2. Pick the right color for your application. The Clear does NOT stay clear. It has a tendency to turn yellow in the sun. If you don't mind that, or won't expose to sun or much light, then the clear is fine, however, I usually stick to white or black. PRO TIP: You CAN mix the colors of the roll-on to make different levels of gray. I am sure Flex Seal would frown but it works for me. It takes a lot of churning to get it all mixed and not streaky. Your mileage may vary. 3. Use for the right jobs. Don't expect this to seal high pressure water or stop a leak in a tire. There are limits to its flexibility too. When you can, seal from the inside AND the outside. Use the tape whenever possible as it works the "best" of the products and is insanely tough. 4. A little goes a short way. It doesn't cover as much area as you would think. Always get extra. 5. Using a screen door in the commercials wasn't an accident. When covering a large area, stick a screen type material to the area and screw it in place. Then use flex seal to cover the gaps in the screen. Use many coats, go slow and the kind of gimmick you see in the commercial is possible. If you cut a 4 inch by 4 inch hole in something, don't expect flex seal alone to seal it. Use a backing material. 6. If you are getting bubbles in the flex seal spray you are putting it on too thick. Relax. Put on thinner coats and apply slower. Give it a few minutes to get tacky, then retry. 7. Final PRO TIP: CLEAN THE APPLICATION SURFACE. This one is a no brainer, but over and over again I read about people not doing the prep work. Using de-natured alcohol is best if you can. It leaves no residue and on a clean surface like that it makes Flex Seal stick like you wouldn't believe. This is the most important thing other than choosing the right kind of flex seal to use IMHO. Good luck! P.S. One more thing you can do is use painters tape or the like to cover from over-spray. Really if you treat it like a super thick paint, most of the same principles apply.
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Reviewed in the United States on October 8, 2017 by Chadnic
Style: White, Mini, 2 oz, 3-Pack
Great for sealing cr acks on planters, furniture and just about anything else that has a cra k that needs sealing. Easy to apply.
Reviewed in the United States on November 20, 2024 by Martha G Callaghan
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Seals and gives a good flexible protective coating.
Style: Gray, 14 oz, 1-Pack
Flex Seal spray has good penetration for cracks. It builds fast, has great coverage, seals and levels itself if you spray too much in one area. Leaves a fantastic overall finish but takes a day or two to dry. Flex Seal gray color, in the spray-can, label and cap are deceptive and are not the color it
depicts. The performance of the product is outstanding but IMO the milky color or hue of the gray in the spray-can is better suited for marine applications and not for automotive aesthetic. The color of the gray spray you see in video and photo reviews is what it is! So be sure to need the functionality of the product and not in hopes for a darker color of the gray in person or on your application. The pale gray you see in my photo is the actual color I coated the dash board in my truck and IMO doesn’t fit with any automotive interior color scheme. That gray color is not even close and actually looks even worse in person for a gray color, than what you see in the reviews, for the price. I give a healthy five stars for performance of the product minus one star for mislabeling and minus another for the gray only being offered online, for the price!
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Reviewed in the United States on April 11, 2024 by Carlos Hayes Carlos Hayes
Style: Brown, 14 oz, 1-Pack
Easy to use covered alot of area
Reviewed in the United States on November 14, 2024 by MK
Style: Gray, 14 oz, 2-Pack
I ordered this because the watering can had developed holes near the top and a pin size hole on the side near the bottom. I searched for a new watering can but none were to my liking and the one I own is perfect— well—except for the holes. None of the holes were large, the largest one was almost dime
size near the top. Nonetheless, I ordered flex seal to save and revive the watering can. It was scrubbed down inside and out, then dried well. I preceded sorting the inside then the outside. I waited 48 hours for it to cure and repeated the process. After another 48 hours I sprayed the watering can again. Let another 48 hours pass and started using the watering can. It was as new once again. I was delighted. The holes were filled and sealed and new life had returned to the watering can. During the hot months I fill the watering at night so it’s ready to use in the morning. This is where the problem showed Flex Seal wasn’t worth the money. The watering can leaked during the night and was half full by morning. The pin size hole spring a leak pushing water between the watering can exterior and the Flex Seal coat until it gave way enough to release the rain water within. I used one of the two cans of Flex Seal which was very easy to use, and appeared at first to adhere very well; however, it does not provide water resistance as expected. I carefully took an utility knife and trimmed away the bobbled area (you can see in photo where I trimmed away and repeated spraying not as nice and clean as the first time), using the second can of Flex Seal to spray the area once again giving it three coats and waiting 48 hours between applications. Currently, the watering can can hold water long enough to water but I can’t let it be full for use in the mornings as it will leak out. Rain water is extremely precious during growing season and that’s all I use on the plants I grow for consumption. I had high hopes and was gravely disappointed. I can not in good faith recommend this product. My money would have been better spent on a new watering can as this product is non-returnable. That’s how the company stays in business. UPDATE: Seller refunded money so they do stay behind their product. For that I give Five Stars for Customer Care. \\DIGITAL SIGNATURE --- \> I close my reviews with a THANK YOU because I do appreciate you investing precious time in reading my material. We live in a complex complicated world where time is at a premium. I sincerely hope you found this review like my others informative and helpful in aiding your next purchasing decision. Your comments are always welcome, I make every attempt to reply to comments as time permits. Again, THANK YOU for the opportunity to aid you in spending your hard-earned money wisely. I am not employed or receive any compensation from the manufacture or any organization promoting this product or additional hardware. I purchased or received as a gift the product like anyone else, just sharing my myriad thoughts and experience with you. I hereby extend to you a plethora of blessings of good health and welling being. Bless you, all. 2021 Copyrighted by Gary Drury
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Reviewed in the United States on July 21, 2021 by Gary Drury Gary Drury
