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How would you rate Flex Seal?
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Arizona
1 review
1 helpful vote
Follow William M.
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I tried to fix my garden hose a small leak with flex tape it didn't work worth a darn I try to fix the backflush hose on my filter for swimming pool backflush hose it's a 2 inch hose it didn't work at all I sprayed some chipping plaster from the bottom of a dry pool but several Coats two weeks later after the pool was full it was leaking again Don't buy anything you see on TV

Date of experience: December 26, 2021
Michigan
1 review
1 helpful vote
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Garbage flex seal
December 11, 2021

As u can see in the pics I used flex seal silicone to try n patch a temporary spot on my basement floor till I can get it fixed right n as u can see it don't work it's leaking right though it n won't adhere to the wet surface like they say it does n I even dryed it the best I could before applying it what a joke I also used there tape n that's a joke to never ever will I buy any product of there's again n will advise people if I see them wanting to buy it to not buy it all there doing is running a legit scam on people n it's bull crap glad I work my butt off everyday to get scammed out of the money I work hard for n can barely survive as it is thanks flex bull crap seal for screwing everyone over

Date of experience: December 11, 2021
Alaska
1 review
3 helpful votes
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I tried several Flex Seal products to seal a water leak on my water hose. All the products failed. I would never believe what they advertise on television.

Date of experience: May 5, 2022
Arizona
1 review
12 helpful votes
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I ordered a large tub of Flex paste on April 24th 2020. They charged my credit card on May 12th. I called them and they told me the charge was initiated because the product was shipping. On the 27th of May I still hadn't received the product. I called them and they told me the product was still in their warehouse. I called and cancelled my order after waiting well over a month for a product that is supposedly made here in the USA. Very disappointed. Will no longer by ANY FLEX SEAL PRODUCTS.

Date of experience: May 27, 2020
Florida
4 reviews
4 helpful votes
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Hahahahahaah
October 3, 2020

. B. S. Flex Seal is Garbage!
Flex Seal is Nothing but Consumer Grade Smoke & Mirrors Junk!
Flex Seal Products Have No ( UV) Properties.
You Want to use ALL WHITE MANUFACTURING located in Ft Laud Florida
They're a little costly, but Last & Last & Last.
We've had our Roof Sealed with All-White-Manufacturing R400 for near 10 years ago.
They Fabricate the Rubber R400 Right in their small shop alongside I95 in Florida.

Date of experience: October 3, 2020
Pennsylvania
1 review
3 helpful votes
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Flex Seal is a great product and I love it!
November 7, 2022

I've been using two Flex Seal products on different projects around my house for over a year. I used it on PVC pipe { in a craw space under the floor} under kitchen sink that was a few centimeters shy of connecting to where it needed to be. I couldn't believe it actually worked! It 's been one year and it hasn't leaked. There wasn't space to just add pipe and I don't have extra money to pay a Plumber. I re attached the end of a gutter on my house { i cut it off because I was going to remove the whole thing but changed my mind after it poured rain for a day. Long story.} with Flex Seal liquid in a can. Still can't believe it's up there for a year now too! I like the Flex Shot in a can the best though. I have a small can of it and I've used it at least 4 different times. I never been able to do that with any other similar product because they dry up and ya can't use it. I've had this Flex Shot for a { you guessed it!} for year now and it works just as great as it did the day I bought it. I keep it in my house and not my garage so it doesn't get cold in the can. Awesome product!

Date of experience: November 7, 2022
Nebraska
1 review
6 helpful votes
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This product is not as depicted. Ad is very misleading once it sets up it is not much more durable than kitchen caulk. Would never recommend caulk is a fraction of the price.

Date of experience: May 31, 2020
Georgia
1 review
1 helpful vote
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Doesn't work!
May 18, 2021

I had a pin hole leak on refrigerator line, and used the flex seal, but couldn't even stop a pin hole leak! Very deceiving going by the commercials! Don't buy!

Date of experience: May 18, 2021
Missouri
1 review
2 helpful votes
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Flex seal is a scam
October 17, 2022

Bought 2 cans of flex a seal didnt seal anything 1 can of flex a seal rubber can dint work for any thing lost 50.00 dont buy anything from this company

Date of experience: October 17, 2022
Georgia
1 review
1 helpful vote
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HEY FLEX SEAL why do you have so many shades of grey?

We have 3 differant shades of Flex Seal Liquid grey in our basement now and we paid you almost a 100.00 a gallon here we are 29 gallons later with 3 shades of grey in our basement on our floor and walls - WHY? - can't you make one shade of grey? WOW
RESPOND PLEASE I have all of my reciepts

Date of experience: March 29, 2021
North Carolina
2 reviews
2 helpful votes
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Camper roof
February 18, 2023

I used Flexseal on the entire wooden roof of my home-made camper. I brushed it on out of a can which meant that it went on a little thicker than with a spray, and after installing my solar panels on the roof, I repainted Flexseal around all the screw tops and around the bottoms of the brackets. Next, I ran the cord from the panels through the roof to the solar generator inside, and then on the outside I gobbed some Flexseal around the cord and it's hole in the roof until I was satisfied it was sealed. That was a couple of years ago. I've never had a leak in the roof, where the screws are attached to the roof, or where the cord goes through the roof, and I live in an area that gets a lot of regular rain. Just checked the roof for the first time to see how it looked now after all this time and it looks just like the day I painted it. All I can say is those of you who are having difficulty might not be using the product as directed, or are not using sufficient amounts. Sometimes we scimp to save time and money. This camper is not the first time I've used this product. I've been using it on my tiny house builds since 2012 and have never had a problem. It's an amazing product.

Date of experience: February 16, 2023
Maine
1 review
2 helpful votes
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I ordered 2 6lb. Containers of Flex Seal Paste from the Flex Seal Website because I could on get 1 lb. containers locally. I had work crews scheduled to perform work but the Flex Seal application I intended to do prior to the work starting had to be delayed and finally I lost my spot in the crews schedule because the product had not even been shipped. I contacted Flex Seal Customer service after waiting several weeks of the paste and was told that the shipping label had been printed but the product was not shipped yet. Shortly thereafter I received an email from Fed Ex with my order tracking number. When I went into Fed Ex to see where the shipment was, Fed Ex indicated that Flex Seal had not shipped the material yet and that I was to contact them. So I did, this was after almost three weeks after initial order placement, Customer Service then told me again that the label had been printed for the shipment but the order had not been shipped. I cancelled the order and will never buy another Flex Seal product. They are a racket and should not be in business. I have ordered different material from another manufacturer, from whom I should have ordered in the first place.

Date of experience: December 28, 2020
Connecticut
2 reviews
0 helpful votes
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I was desperate my air mattress ive oened 5 years had a hole patches and other cures couldnt fix! I purchased flex paste well for 16.00 i figured it was worth a shot. I opened the container after reading the label it said to scrape an even layer off the top of the container i took my puddy knife to try and scrape it and the whole top layer was rock hard! I ended up heating the container and popping the product out of the container only to find mabe 1 or 2 tablespoons of usable product left in the container! Hardly enough to patch much of anything! I wrote flex seal to tell them and they said it was normal for there to be a cured ring on top! It said noplace on the label to expect any cured product let alone about 90% of the container! What i pulled out was a rock hard piece of rubber puck and about 1-2 tablespoons of usable product. Im waiting to hear back but they claim it is normal to have the product be completely junk and unusable when you buy it and from what they wrote they are basically admitting to selling it knowing full well its not usable! I also have proof of purchase but did not include the receipt but do have it

Date of experience: July 7, 2023
Oklahoma
2 reviews
5 helpful votes
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Crap
January 18, 2023

Sprayed flexseal on last August and look at it today. The crap is not sealing anymore, all cracked and disappearing. What a disappointment.

Date of experience: January 18, 2023
Washington
1 review
2 helpful votes
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Not good for RV
January 28, 2023

I applied this in dry weather with a clean roof. First rain it flaked off. Not a good material for RV roofs

Date of experience: January 28, 2023
Georgia
1 review
1 helpful vote
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Does not work
April 21, 2021

Sealed a galvanized cooler interior with the paste which didn't work, then sprayed entire can in interior. Still leaks.

Date of experience: April 21, 2021
Canada
1 review
4 helpful votes
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Flex Seal Failure
January 7, 2023

Used clear flex seal spray around skylight, did not work at all still leaking when rains, professional roofer said this product does not work

Date of experience: January 7, 2023
Canada
1 review
3 helpful votes
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Doesn't Work AT ALL
February 9, 2023

It can't even stop the smallest little dribble leak on a fully clean PVC elbow on my hotub, save your time and money, don't even think about using Flex Seal.

Date of experience: February 9, 2023
Texas
1 review
0 helpful votes
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I love this stuff
March 15, 2023

I fixed ceramic pot planters I fixed cement bird bath I fixed glass chimes that was broken so for everything I use it on it works I keep a can on hand at all times stuff works great

Date of experience: March 13, 2023
Maryland
1 review
1 helpful vote
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Did not work
September 5, 2020

Was so hoping it would work for us, but it is a grabage product. They did not honor their guarantee, becuae they I bought it at Lowes at not fron the infomercial.

Date of experience: September 5, 2020

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