Ratings & Reviews for Flex Seal Epoxy Extreme Liquid Multi-Purpose Durable Permanent Watertight Long-Lasting Bond for Automotive Marine Plumbing Home Tool Repairs Cures Black 2 Tubes: 0.5 fl oz (14 mL) Each
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this epoxy for its exceptional bonding strength, fast drying time, and ease of use. Most highlight rapid initial set within minutes and full hardness within hours, enabling immediate handling. Reviewers consistently report extraordinary holding power—describing repairs on metal, wood, ceramic, plastic, and engines as durable and unbreakable. Many commend the simple knead-and-apply process, precise dispensing, and effortless cleanup. The minimal odor and black color that blends seamlessly with repairs appeal to numerous users. A few note initial stickiness during application. Overall, customers consider this a trusted, go-to solution for reliable, long-lasting repairs.
Customer review summary generated by AI, including incentivized reviews.Works great!
[This review was collected as part of a promotion.] We used this on the lid on our pool pump that had a crack in it, and it works great! It’s very well water proof, and it’s prevented it from sucking air. Left it out in the sun for about an hour, and it had already set pretty well! Didn’t notice an odor, but it was used outside. Highly recommend!
From flexsealproducts.com
Since it’s a chemical protect your skin and have a
[This review was collected as part of a promotion.] The drying time is less than 24 hours but cured takes up to 24 hours. Before cured there is an odor and I wouldn’t use in a closed in space After cured I didn’t notice the odor anymore.The product does hold up and once dries it is waterproof. Was able to paint over with no problems.
From flexsealproducts.com
Fixed my motorcycle part !
[This review was collected as part of a promotion.] So handy!! Bonded a broken metal piece on my motorcycle engine. Waited the next day and it was dry, so about 10-12hrs but probably will work much quicker depending on how much you use! Covers well and easy to control. Slight Odor but goes away after it’s dry.
From flexsealproducts.com
Good
[This review was collected as part of a promotion.] This was my first time trying this out. Instructions are easy to follow. Product was easy to use. The adhesive is very strong. I enjoyed trying this product.
From flexsealproducts.com
Works good to cover up small holes.
[This review was collected as part of a promotion.] Works great on the hard plastic kiddie pools. I have a hard plastic pool for our 2 Great Danes, and sometimes they can be a little rough, and their nails can puncture holes into the pool. I have used the flex seal to close up the holes, and it has worked perfectly so far. It took a couple of hours to dry completely, but it has worked well so far. It does run a little, and I had to apply it a little more, but that is the consistency that was nee...
From flexsealproducts.com
Fast dry time and low odor
[This review was collected as part of a promotion.] This works like magic! Very durable but flexible. Fast dry time and covered easily. It did have an odor but it wasn’t horrible. Would definitely buy again!
From flexsealproducts.com
Extreme Bonding
[This review was collected as part of a promotion.] It is extreme bonding eproxy. It is so extremely strong that just 1 gram of this eproxy can hold up to 8 ton once set properly. It takes 3 to 6 hrs to set and can take up to 15 to 24 hrs to be fully cured. All you have to do is mix two parts together.
From flexsealproducts.com
Easy to use and looks natural
[This review was collected as part of a promotion.] The Flex Seal Epoxy Extreme Liquid comes out in a black color and is easy to dispense. It covers well and goes on smoothly. No clumps or bubbles during use. It dries pretty quickly and looks very natural upon drying. Works great on the overall and doesn’t dry out and crack.
From flexsealproducts.com
Works Amazingly!!! 🪵🛴🪟🚪
[This review was collected as part of a promotion.] Flex Seal Epoxy works very well. It can be used on metal, wood, PVC, tile, plastic, glass, ceramic, concrete, brick, and so much more. It is worth buying over the cheaper alternatives.
From flexsealproducts.com
Wall seal
[This review was collected as part of a promotion.] Cool little seal gadget, no strong smell super convenient. Super affordable, I let my dad use it along the door/wall seal and he said he liked the consistency of this product and it’s very sturdy.
From flexsealproducts.com
Strong good glue
[This review was collected as part of a promotion.] This glue is strong, easy to apply, and dries quickly with a secure hold, making it reliable for everyday repairs and craft projects. Doesn’t have an odor and should work for a lot of coverage
From flexsealproducts.com
Good product
[This review was collected as part of a promotion.] Product works really good. I've used it on model boats. Ceramic mug. Pladtic models. Sealed a leak on my pool. Used it on many different things seems to hold up well.
From flexsealproducts.com
Strong and reliable
[This review was collected as part of a promotion.] I use Flex Seal epoxy for all kinds of home repair tasks. Its super strong while still being easy to work with. It does well with water too so I've used it to temporarily fix a leak in a sprinkler line until I had a chance to properly repair the pipe. The cap is the best I've used on an epoxy syringe too. You should always have a tube of this on-hand if you're a homeowner.
From flexsealproducts.com
This stuff works
[This review was collected as part of a promotion.] I use flex seal the brand a lot! This flexseal, epoxy, extreme liquid black 25ml works great! I don’t have to worry for any of my projects falling apart or leaking because of how durable this product is!
From flexsealproducts.com
Great seal!
[This review was collected as part of a promotion.] This is a great product for the cost. It provides a durable seal with easy application and good packaging. It is effective, easy, and totally worth it!
From flexsealproducts.com
Easy to use two-part epoxy
[This review was collected as part of a promotion.] Overall, this is a nice two-part epoxy product. It’s easy to dispense and I quite like being able to cap it for future use. Mixing is easy and it stays workable for plenty of time to apply as needed. I don’t love having to wait for a full cure, especially when compared to many superglue products, but the strength and bond generally make it worth it. I was able to repair a ceramic pot (pictured) although it’s not the prettiest fix. I tried fix...
From flexsealproducts.com
Actual epoxy not flexible
[This review was collected as part of a promotion.] When originally received I thought this was a basic flex seal application but I digress. This is an epoxy product and not flexible sealant so made for great applications. The ease of use and fast dry made for a solid bond. The smell is no different than any other epoxy but the cure is too notch.
From flexsealproducts.com
Good
[This review was collected as part of a promotion.] Very great seal glue! Odor is a little strong! Durability is great doesnt make the product fall out of place !! Drying time is quick not bad !! I liked this product
From flexsealproducts.com
Great size
[This review was collected as part of a promotion.] I love the fact that this comes with a GOOD SIZE of the epoxy! It worked just as I needed it to with the only gripe of mine being that I’m not crazy about the smell.
From flexsealproducts.com
Decent product
[This review was collected as part of a promotion.] My favorite pair of shoes cracked making them wearable only 1/2 the year here in rainy Seattle. This product brought them back to being sea worthy. It was easy to use but definitely no where near as quick as traditional epoxy. The setting time took every last minute. It was easy to dispense the exact amount I needed and discard the rest.
From flexsealproducts.com