website thubmnail of Flex Seal
How would you rate Flex Seal?
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Mexico
1 review
2 helpful votes
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Expensive spray paint
November 22, 2022

Stuff is absolute garbage it's not even a good spray paint. The ads are totally false. I tried to use it to seal a leak in my shingle roof I sprayed it heavily in the area and it did not work I also used it on my truck

Date of experience: November 22, 2022
DO
1 review
1 helpful vote
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I bought 2 tubes of Flex Glue Clear directly fom the company in January 2021. I never opened either tube until 2 weeks ago. Both tubes were rock hard and had no glue that could be used. I emailed the company twice asking for either a refund or replacement and never received the courtesy of a reply. I would never buy any of their products again.

Date of experience: September 17, 2022
Hawaii
1 review
3 helpful votes
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Title says it all. I live in Hawaii and they were going to send me a replacement but then said they do not ship to Hawaii. How the heck did it get here in the first place. One jar was hard as a rock when opened, the second got hard after about 5 minutes... don't buy unless you are going to use it immediately.

IMPOSSIBLE TO CLEAN UP

Date of experience: August 18, 2022
Tennessee
1 review
4 helpful votes
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Worthless mess!
February 6, 2022

All I needed it to do is seal a small crack in the shower... Simply shake and spray, a no-brainer right? Wrong. Within 30 minutes it cracked and peeled away from the wall. I prepped and cleaned the area again, same thing happened. Total aggravation and a waste of time and money!

Date of experience: February 6, 2022
Texas
1 review
13 helpful votes
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Not good at all.
October 9, 2019

I purchased 2 cans and used only one. It didn't seal, it attached to the metal. My room leaked a lot. Need to remove insulation, and the board for the celling. Of course with all the water that came into my sewing room. Can number DOT 2P M5702 code ******* *******. Thanks for making me spend money on your product that didn't work.

Date of experience: October 9, 2019
Florida
1 review
10 helpful votes
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A couple of months ago my daughter and I used flex shield spray to try and fix 2 very minor leaks iin the pvc the close to the pump., one was the exit ppie the other the suction side. We had the pomp turned off and after spraying this junk on the leaks we left the pump off to 30 hours, BTW: we did drive the area before applying the spray After 30 hours we turned the pump back and only to find the flex seal did nothing, so we went thru the entire process again, still no change, still had 2 very minor leaks. Ended up replacing the pvc pipe. Will never buy any type of Flex products again, government should do something about this company and their false advertising. I feel the stuff is junk. I am now going to check to see if consumer report has ever tested any of this companies products. I would rate product 0, if that was possible.

Date of experience: November 30, 2020
South Carolina
1 review
3 helpful votes
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I have a pipe leaking and bought the tape the putty and the spray it does not work as advertised! I spent more than $20 and I am not happy I am disabled on a fixed income I expect it to work I am very very unhappy with my purchase I will be letting everyone I know not to buy your product! Thanks for nothing!

Date of experience: October 11, 2022
Texas
1 review
1 helpful vote
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I used the Flex Seal paste on my leaky gutters. Discovered that it needs to be applied ONLY to a smooth surface; it did not work on a rough surface. That being said, it did a FANTASTIC job on the smooth part!
PROBLEM- I sealed the container [according to directions], since I could not complete my work until a few days later. When I opened the container, the product had hardened. After writing to the company, they explained how the product could have been compromised at the retail location, and very generously resolved my situation beyond my expectation. As a result, I finished the job. They truly have customer service as a top priority.

Stacey M.
New York

Date of experience: November 8, 2022
Missouri
1 review
1 helpful vote
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Did not work
July 20, 2021

Did not work on a tire. Waste of money! Also used the paint flex seal on a animal water feeder, it still leaks. So gave this product several chances to work and it was a flop! I bought at walmart. Did not know had to keep receipt to upload a picture on here.

Date of experience: July 20, 2021
North Carolina
1 review
9 helpful votes
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Tried using flex seal to stop a leak on our camper water tank. Have tried the can spray and the tape. Dried the surface as much as I we could and it was still little damp. The tape would not stick to damp surface as it claims and did not keep from leaking. Also the can spray would not stick to the surface!
I do not recommend for water issues!

Date of experience: July 12, 2020
Maryland
1 review
20 helpful votes
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BAD PRODUCT
October 1, 2020

I purchased flex seal product for $100.00 and did what I was told by three different representatives from the Flex Seal Company and repeatedLy applied product to surface and the product did not work AT ALL. I emailed company three different times, sent pictures, told them how dissatisfied I was with their product. They said they would get back and they never did over a period of a month. I would not purchase a product from this company with such Horrible business ethics.

Date of experience: October 1, 2020
Australia
1 review
4 helpful votes
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Waste of money
May 8, 2022

The TV ad is very misleading. As soon as you open a tub it begins to skin & harden in around 15 minutes' The tub is useless because it goes hard before you can finish the job. It skins over as you are trying to scrape it out. There is no way it can go into containers exposed to the air the way it's shown on TV. Absolute ripoff & will never spend $35 on another tub when I can get silicone that costs $10 & lasts while it is being spread & until the tube is empty.

Date of experience: May 8, 2022
Missouri
1 review
13 helpful votes
Follow Mike H.
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Flex seal is bogus
May 22, 2018

How can you cut a boat in half, and tape it together, and not leak? I tried all three of the flex seal products to patch a small leak in a pool filter, and neither of the three products helped to stop the small leak. This is false advertising.

Date of experience: May 22, 2018
Virginia
5 reviews
27 helpful votes
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Attempted to buy Flex Paste directly from site. After being charged, it never came. I called after 4 weeks and was told it would ship within next 3 weeks. After 4 more weeks, called again and told it would be another 3 weeks. Told them to cancel order and they told me that they couldn't refund since it has been so long since I ordered even though I never received product. Put a claim in with credit card and they actually argued against the refund but lost since they couldn't prove they ever shipped. STAY AWAY.

Date of experience: August 26, 2020
Massachusetts
1 review
17 helpful votes
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Dont order
January 13, 2016

I was shipped and charged for an order that I never made. I left the website when the cart would not let me remove an item no matter how many times I tried and they actually still sent it even though I NEVER submitted the order. This is a scam.

Date of experience: January 13, 2016
Pennsylvania
1 review
8 helpful votes
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Garbage
September 12, 2020

Ordered from official website. Took weeks to arrive. When initially opened it was like a rock except in the very middle. Followed directions to the letter on the can even though I had very little to work with. Sealed exactly as stated. 2nd time of use it was 85% rock hard. It had to go into the garbage because I couldn't even get enough out to use. Find an alternative on Amazon

Date of experience: September 12, 2020
New York
2 reviews
18 helpful votes
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Trust less bum
June 5, 2020

I ordered 2 kinds flex seal product. After week i don't got any of message from them when i will get it so i called them. Wait around 15 min one person answer i will get next week. After week stuff didn't come so i called them again and they said shipping dept have problem bla bla... this company cannot trust. I guess bum's company like crook. I canceled my order and take a look they will refund my money or not. It not just 1 star. If possible i will give them - 5 stars.

Date of experience: June 5, 2020
Virginia
1 review
33 helpful votes
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I ordered a can of flexseal online. When I received the order confirmation my mouth really dropped open. I ordered one can at $19.99 plus a free one. Shipping was 29.99 + another 19.99 for the extra can. Total 49.99. I complained and now I can't find the order confirmation. How did they do that?

Date of experience: July 9, 2011
Georgia
1 review
5 helpful votes
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I purchased a 3lb. Tub of flex seal from lowes 2 days ago. When I opened the tub, the top and sides were set up. There was only a small space in the middle to get any material out, and it was partially set up. The crack I sealed was a metal roof over a carport, it looked terrible due to the flex seal partially set up. The tub was only 3/4 filled. Thirty dollars wasted.

Date of experience: June 17, 2021
Florida
1 review
2 helpful votes
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The first 3 inches of tape was very good, then after that, the rest of the roll OBVIOUSLY BAD. Masking tape is better. I used it on the exact same type of area on 2 items (cap area on a paintball bunker). The first one was great. I could barely get my fingers off the the tape. THen, 3 inches into the roll, only about 20% of stickiness that the first 3 inches had. FlexSeal cheats on manufacturing. Gives you the real product for your first little strip then cheats on the rest. HORRIBLE.

Date of experience: July 1, 2023

Overview

Flex Seal has a rating of 1.3 stars from 219 reviews, indicating that most customers are generally dissatisfied with their purchases. Reviewers dissatisfied with Flex Seal most frequently mention customer service, small leak and credit card. Flex Seal ranks 256th among Plumbing sites.

service
42
value
74
shipping
32
returns
31
quality
70
+56