J-B Weld Professional Size Steel Reinforced Epoxy Dark Grey - Hardener and Steel pack - 10 oz
J-B Weld Professional Size Steel Reinforced Epoxy Dark Grey - Hardener and Steel pack - 10 oz
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J-B Weld Professional Size Steel Reinforced Epoxy Dark Grey - Hardener and Steel pack - 10 oz

4.8 stars out of 203 reviews
(4.8)|
203 ratings

Key item features

  • Strongest Epoxy: This steel-reinforced epoxy boasts exceptional strength, with one square inch capable of holding 5020 lbs, and a tensile strength of 6220 PSI.
  • Durable Finish: Once fully cured, the dark grey epoxy can be sanded, drilled, painted, and tapped, offering versatile finishing options.
  • Versatile Adhesion: It forms strong bonds with various materials including all metals, stone, concrete, fiberglass, rigid plastic, wood, and ceramic.
  • Resistant Properties: The cured epoxy is fuel resistant and can withstand temperatures up to 550°F, ensuring durability in demanding conditions.
  • Simple Application: The two-part epoxy system features an easy 1:1 mixing ratio, setting in 4-6 hours and fully curing in 15-24 hours for a hard, permanent bond.
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4.8 out of 5 stars
stars203 ratings87 reviews
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Reviews summary

Pros
  • : Effective for various materials and applications.
  • : Provides generous storage capacity.
  • : Offers a lot of product at this cost.
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Showing 1-3 of 87 reviews

Feb 5, 2026
Gabriel
Item details
Size: 10 fl oz
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

10000000 uses and counting

So I wrote another review where I spoke about how I hit a boulder on the highway. Unfortunate luck to say the least. cvt transmission fluid that I needed. This however, is how I fixed my transmission pan. At first I look to see how much a new one would be. Yep quite a bit more than I had at the time so naturally I start looking online to see if I can maybe use some redneck, ingenuity. And wouldn't you know it this stuff right here was exactly what I needed. It worked like a charm and has worked since and spent months now so so far so good I guess. Now disclaimer here follow the directions in particular the surface prep. You have to get it very clean which it says in the instructions, I should've listened I guess however, still holding up to the day so hey, I did it right somewhat right this stuff can be used for pretty much anything. If you can figure out a way to use it the times I've used it countless honestly I use it for all kinds of stuff so yeah try it out. It's pretty cheap if it doesn't work OK, but it did for me so you try maybe you lose 15 bucks I bet they'd probably even give you your money back if it didn't work, but who knows

Helpful?54ED7QDB1AG2388134926
Oct 7, 2025
valerie
Top Reviewer
Item details
Size: 10 fl oz
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Outstanding product, but never in stock!

Great all purpose, fixing product, steel epoxy, that adhere to many surfaces. The only better product is their industrial strength, which dries and cures faster. Walmart never seems to have this size in stock so it has to be shipped. That is frustrating.

Helpful?54ED7QDB1AG2388134926
Aug 15, 2025
Colin
Item details
Size: 10 fl oz
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Still As Great As Ever

I have been using JB Weld for several years and found they have maintained product consistency and high quality. I had never seen the large size in my local suppliers and was glad to obtain this quantity. JB Weld is my duct tape of glue products.

Helpful?54ED7QDB1AG2388134926