
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.Fantastic product for so many different projects!
[This review was collected as part of a promotion.] The handle on our microwave broke and I had just received this sample. What better use for it right? Well let me tell you what a fantastic job it did! You’d never know the handle had broke. It has a strong seal after curing. There was no mess and it didn’t even smell terrible. I plan to use it any chance I can to see all the different uses I can get out of it. But it is definitely strong. I don’t think any other product would hold as well with ...
From influenster.com
Easy and strong!
[This review was collected as part of a promotion.] The ultimate putty is super easy and super strong. I have used this for both big and small projects and it hold up great! My only complaint is that it does dry quick. Be prepared and ready to go!
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Good
[This review was collected as part of a promotion.] Good product use to attach back the microwave handle after it came apart so far been about 2 weeks and it’s still holding on was a little messy but not to bad.
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Gray Funny Putty
[This review was collected as part of a promotion.] When my Peacock vase broke I was devastated and I really didnt want to use any type of glue to mess up the piece. I was excited to see this poxy was easy to knead in my hands and apply. And just like that my vase is fixed!!
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Easy to use
[This review was collected as part of a promotion.] My drawers kept coming apart. I live in. A townhouse and am impatient for someone to come fix them. So using flex seal (I know it's probably not for this) I got them to stay. It was easy to use but make sure you knead it well or else it won't work as well as it could. It help keep me sane by keeping my drawers together!
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Sealing better than anything else
[This review was collected as part of a promotion.] I wasn’t sure if I would ever need to use the product but my neighbor’s trampoline was picked up by the wind and speared the side of my home!! He used this product to temporarily cover the holes in the siding and drywall until someone can fix. I can’t believe it worked!!! No water got into my home. I’ll keep this handy.
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So handy!
[This review was collected as part of a promotion.] This epoxy putty is super easy to use—just knead and apply. It hardens quickly and creates a very strong, durable repair. I love that it works on different surfaces and can be sanded or painted once cured. Perfect for quick household fixes and emergencies. Definitely a great product to keep on hand!
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Recommend for small jobs
[This review was collected as part of a promotion.] Nice consistency and flexibility with minimal shrinkage, it was strong enough to seal an outside planter. It did take longer to set up because we have cooler weather.
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Good product!!
[This review was collected as part of a promotion.] This is a great epoxy! I love the size and it's perfect to have around the house for any projects that come up. The packaging is good and it is pretty easy to apply!
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Great!
[This review was collected as part of a promotion.] I’ve been a fan of flex seal products for a while, and love that they have expanded to so many different types of items. Love that this product is multi-use and waterproof. It’s a great addition to there product lines.
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Meh
[This review was collected as part of a promotion.] Good putty. I used it to fill a crack. It is good c overall really strong product put forward by flex seal. Just like the commercials they used to have
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I like the flexibility of a putty
[This review was collected as part of a promotion.] I like the flexibility of the putty so I can place it where I need it without dealing with the runny consistency of other epoxy glues. I didn’t give it 5 stars because the putty sticks to your fingers as you try to mix the gray and white parts together, although it doesn’t stain if you wash right after.
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Great for a quick fix!
[This review was collected as part of a promotion.] Flex Seals Epoxy putty is a great tool for those quick fixes around the house. It packaged well to work on many different task, with easy prep and great bond strength. It has a reasonable set time and cleanup it a breeze. It also keeps it overall size with minimal shrinkage. Must have for your tool box!
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A MUST HAVE
[This review was collected as part of a promotion.] I just received this excellent product and I'm extremely happy with the results, it fix anything basically, it holds pretty well, no like those cheap ones that you have to reapply, this one actually works, i like that it's very easy and intuitive to use, but it also has the instructions, and the packaging makes the use mess free.
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Perfecto
[This review was collected as part of a promotion.] Really easy to use and mix up. Follow the instructions as the back says and you’re golden. I used a plastic knife and paper plate to cut the putty, so clean up was easy.
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Awsome
[This review was collected as part of a promotion.] Love this stuff, easy to paint over. Shrinkage is awesome, super super durable! Great adhesive, and your able to sand it or works with it however you want. Absolutely love it. I will be buying more.
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It works!
[This review was collected as part of a promotion.] Great product I used to fix my jewelry hanger so far. The packaging was great and I hope it doesn’t dry out between uses. It dos have a chemical smell, but it’s not too strong. I can’t wait to see what all I can use it for!
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Great adhesive
[This review was collected as part of a promotion.] This product is such a good deal. It helped shape a small hole that was left behind following my renovation. It adheres strongly and is durable as well. It was easy to mix. The odor is not too strong.
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Awesome
[This review was collected as part of a promotion.] This stuff fixed my broken caboodles! I thought nothing would fix it, but this stuff bonded and cured and left no residue! Very happy with it and it held for a month now.
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Many uses.
[This review was collected as part of a promotion.] My car is an older car and it often needs repairs. I used some of this in my car repairs and some of it in my outside pool for the filter. It works great for in water too and held up great before closing it up for the year. It hardens after a while. You can sand it if you want a clear finish that looks good.
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