Ratings may include incentivized customer reviews.
What Customers Are Saying
The product is praised for its effectiveness, ease of use, and versatility in fixing leaks, cracks, and holes on various surfaces. Customers report the paste is durable, fast-drying, and forms a strong, waterproof seal. However, some have experienced issues with the paste drying out or hardening prematurely, and a few received unusable portions upon arrival, suggesting occasional quality control problems. Overall, the majority of customers are highly satisfied and recommend the product as an effective and affordable solution for household repairs.
Customer review summary generated by AI, including incentivized reviews.Love this paste
[This review was collected as part of a promotion.] I used this paste around my sink and shower and omg! It’s holding my sink handles and shower handles in great paste. Easy to work with, apply a little at a time because the hold is magnificent!
From flexsealproducts.com
Great product
[This review was collected as part of a promotion.] This is a great product. Very durable and effective. Great versatility for the spaces it can be utilized. Application was easy but I suggest using gloves. Great value!
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Works Well!
[This review was collected as part of a promotion.] I decided to try Flex Seal (instead of using Caulk) in our bathtub because after just one year of applying a fresh new seal of caulk we started getting moisture mold where the caulk was applied. This seal is nowhere near as simple to apply and use as caulk is, but I’m hoping that it will hold up much better in the long run. This paste is very thick and extremely tacky- like clay and duck tape had a baby. I used my bare hands covered by disposab...
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Know what you need before purchasing
[This review was collected as part of a promotion.] So there are pros and cons to this product. This would work great for a crack in the sidewalk or a wall. So large patch jobs would be perfect but smaller jobs like patching a water hose or a small hole the paste is too hard to apply. So if you have a large patch job this is the product for you.
From flexsealproducts.com
Hi there, thank you for taking the time to share your feedback with us. We're sorry to hear that Flex Seal did not live up to your expectations. When ...
That’s a no for me!
[This review was collected as part of a promotion.] The flex seal paste is SO hard to apply. Especially in a clean smooth way. We tried just using a dab on a gloved finger and it does not spread well. We also tried using a spatula like you’d use with drywall repairs and the paste was just so goopy. There has to be something better!
From flexsealproducts.com
Hi there, thank you for taking the time to share your feedback with us. We're sorry to hear that Flex Seal did not live up to your expectations. When ...
Works great!
[This review was collected as part of a promotion.] This works great! I used this to fill a few cracks on my basement floor and it did the trick. The paste is thick to spread but filled in the cracks well and left a smooth finish. It takes some time to dry but once cured it seems fully waterproof and nice and secure. I like the different color options to blend better with whatever project your doing. It seems like you could use this for an endless number of different projects!
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Works as Expected
[This review was collected as part of a promotion.] This item is very effective. I wish it came with an applicator or something. I find this jar to be very large and the value is great but I am not sure how I will go through this much of it before it expires. I don’t know probably great for someone with lots of hole and accidents in their life ha.
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Does the job
[This review was collected as part of a promotion.] The product is great for leaks or filing up holes, it does the job well but it is messy and the part which i didn't like much was that i used it one time only and i needed it again it is dried up. That disappointed me . Not sure if the container i had some problem or is this a problem all in all.
From flexsealproducts.com
Hi there, thank you for taking the time to share your feedback with us. We're sorry to hear that Flex Seal did not live up to your expectations. When ...
Used In Different Situations
[This review was collected as part of a promotion.] I used this to seal a basement window casing crack during winter and it works great! The adhesion is impressive also waterproof and can handle extreme weather. I always make sure to follow 24 hours drying instead of the recommended time just to make sure. Versatility is impressive since it can be used in different situations. Highly recommended
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Works great!
[This review was collected as part of a promotion.] I used this to seal the dryer vent because it was not sealed properly. It took a few hours to dry but once dry it works great. It is a black finish so it worked out great for the projects I needed, one for a shower drain. The sealant doesn’t dry out either and the can is easy to open
From flexsealproducts.com
Hi there! Thank you so much for your 4 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Great product
[This review was collected as part of a promotion.] Flex Seal Paste is a game-changer! I used it to seal a leak in my outdoor water feature, and it worked like magic. The paste is easy to apply and adheres incredibly well to different surfaces. It's also weather-resistant, so I don't have to worry about it breaking down over time. Plus, it dries quickly, allowing me to finish my project in no time. Overall, I'm impressed with Flex Seal Paste's effectiveness and durability. Highly recommended for...
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Handy product
[This review was collected as part of a promotion.] This is such a handy product to have around the house. I love that it comes in a can since it makes it very easy to use and you can take the exact amount that you need. It is a versatile product and can work in a lot of tasks around the house. It has good adhesion and it dries down quickly.it is strong and does the job!
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Great for waterproof cracks
[This review was collected as part of a promotion.] My bathtub cracked and the crack was a little too deep. I use this flex paste to cover that up and it has been a week that the adhesion has worked great.
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Sealer
[This review was collected as part of a promotion.] I had a few spots around Mt tubs that needed to be filled in and this flex seal got the job done. It gave good coverage and did not take too long to dry. I also was able to seal my above group pool pumps with this.
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Sealed a leaky waterhose
[This review was collected as part of a promotion.] I have a waterhose leader that goes to my hose reel. It has developed a crack, a leak, that sprays water. This product Flex Seal Flex paste worked great. It's a pasty product , so it was easy to apply. It solved the problem, no leak!
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Seals great!
[This review was collected as part of a promotion.] I had to seal my baseboards because little ants let getting inside. I noticed there was a gap underneath all of my baseboards. What I like about this paste is how easy it is to use and how easy it is to control the amount that you use. It dries up pretty quickly and doesn’t leave a strong smell inside the house while it dries. Definitely something needed in all homes!
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Works Great!
[This review was collected as part of a promotion.] It really works! I love the Flex Seal - Flex Paste. All weather rubberized paste seals out water, air and moisture. Goes on super thick to fill all gaps and cracks. Can be used on wet or dry and on almost any surface. I used it on my roof to stop a leak around an exhaust pipe and with one application stopped all leaks. The best part is the Flex Paste starts to cure once exposed to air and seals almost immediately. I would highly recommend it fo...
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Easy to use
[This review was collected as part of a promotion.] The paste is antique white color. It’s really thick and easy to used. Since it doesn’t come with plastic scraper, I got one at home to use. The paste dry time is ok. I wait over night. After dry, it’s waterproof and seal tight texture similar to rubber. I used it to fixed the seal around kitchen sink. It’s very nice match with my old one.
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Great product
[This review was collected as part of a promotion.] I Received this product for my honest review. This has an easy application and quick drying time. Great for using on anything that would be good for a black finish.
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...
Strong Flex Seal Paste
[This review was collected as part of a promotion.] I received this product from Influenster for free in exchange for my honest review. This Flex Seal Flex Paste is very durable and holds strong. I used it to seal off the vent trim in my attic, and it was very easy to apply and use. It's not messy, nor does it have a foul odor. The seal on my vent is now repaired, and no more rain drops are leaking thru. I like that even during use, it can be easily removed, and I can start over with sealing my ...
From flexsealproducts.com
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...

Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at humans@fle...