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Your cart is empty.J-B Weld High Heat Epoxy Putty High Heat is a hand mixable epoxy putty stick specifically formulated to bond and repair materials that will be exposed to high temperatures in automotive and industrial maintenance applications. It cures to a tough, hard bond with little to no shrinkage. This industrial-strength product outperforms conventional epoxy putties at high temperatures and sets in 1 hour at room temperature. After 8 hours, it can be drilled, tapped, machined, ground, filed and painted. High Heat is rated at a tensile strength of 800 PSI and cures to a machine grey in color. It is able to withstand continuous heat exposure of 400 degrees F and intermittent heat exposure to 500 degrees F. Use on: Automotive Metal And more Instructions 1. Cut: Remove required amount of putty. 2. Mix: Thoroughly knead putty with fingers to a uniform color. 3. Apply: Press putty firmly to the surface to be repaired. J-B Weld is proudly made in the USA
Customer
Reviewed in the United States on March 3, 2025
A Must have to use around the house 3-5 min sets up. Rock Hard.another one that's High heat. It takes about an hour to set.also a water weld. Its just ok to me. I fixed a radiator leak with the onethat sets fast.
132DL132
Reviewed in the United States on February 7, 2025
it worked like a charm. would definitely buy this again in the future.
Customer
Reviewed in the United States on February 6, 2025
works great
Kindle Customer
Reviewed in the United Kingdom on February 10, 2025
Did the job that it was required to do, would recommend
wouchi
Reviewed in France on January 24, 2025
article parfait, et sav très sérieux
Phumsirikorn RATANAKASIKORN
Reviewed in Australia on August 10, 2024
Product delivery than schedule but it look old and dusty.
Dino2012
Reviewed in the United States on July 12, 2024
So I bought this to use for a different purpose. I was hoping it would work.I have several outdoor umbrellas and the “tilt” feature broke, so I could not get them to stay straight up. I thought and thought about how I could fix them since I did not want to just throw them out, they are only a few weeks old. I came across this item and thought, why not, let’s give it a shot.I was intrigued for the fact that this could withstand high heat and since the umbrellas are outside in Nevada sun, that would be beneficial.I cut one in half, since I didn’t need a whole lot to wrap, so I could use the other half on a second umbrella. I could have honestly cut it even smaller but I didn’t know who this worked.It goes on like a simple piece of tape, but once it cured, wow, it was as strong as metal and noting is moving.I am so happy I found this. Now I have to order one more since I only cut this one in half. Oh well, I’m just happy I don’t not have to throw my umbrellas in the trash.Highly recommend
soulnull
Reviewed in the United States on June 6, 2024
I'm a fan of JB Weld, and maybe I was asking too much of this product, but I was still disappointed. I used this to mate an exhaust together using a sleeve over both sides, so the JB Weld really only needed to hold the sleeve in place.. but it cracked and broke. It did dry up pretty quickly, and was very hard. Maybe a bit too hard, as the crack may have been from a shock while it was warm that it just didn't like. This was right at the end of the tailpipe and the beginning of the muffler, so not at the manifold, past the resonator, so it certainly gets hot, but not outside of the range that this product claims to be good for. I just don't think it was the right application for this product, though it sorta seemed like an ideal use for it. I had better luck with those wet-n-wrap epoxy cloth kits in this specific scenario. I specifically made an effort to keep the stress on the area as low as possible by using a coupling pipe between the two, but the JB Weld High Heat just wasn't up to the task.At least it wasn't a goopy nasty mess like the resin cloth stuff.. that stuff was nasty to work with. This stuff was much neater and cleaner, but for this use case, just couldn't do the job.I still love ya, JB Weld, but this one was a little underwhelming.
Rich
Reviewed in the United States on June 27, 2024
I had the repair a plastic refrigerator fan housing that had broken when replacing the fan and motor. This stuff enabled me to rebuild the housing in places that had disintegrated due to heat plus hold everything together well. I was skeptical it would work but after letting it cure over night I found the housing to be stronger than it was originally. The heat resistance is needed for this application so am very pleased with that too—the housing is better than new. Highly recommend.
Customer
Reviewed in the United States on March 16, 2024
I had a dime sized rotted spot on the families mini van muffler that was becoming increasingly loud. I decided to use this product to see if it would plug the hole and quiet the vehicle down some . The goal was not a long term fix, just one that would allow me to push off the $500 visit to the shop for another month or two. After cleaning out the hole and surrounding rust, I found I now had a walnut sized hole to fill. Furthermore, the inside of the muffler was filled with wet rusted metal flakes. I became skeptical that the product would work for this application but was fully committed at that point. The product mixed and installed as expected. I used it in two layers, the first (1/2 stick) was tucked into the hole with emphasis on getting some putty inside and behind the edges of the hole so it would grab and not blow out. The next application (2 hrs later) filled the void completely . ( This took about 3/4 of the epoxy stick in total). I allowed it to rest overnight . When I started the van the next day, it still had a rumble (from the internal rotting of the mufflers baffles) but it was significantly quieter. It's been a week now and it seems to be holding up just fine. The van will go in for a proper repair next month but this was a good stop gap measure that was well worth the hour and funds invested.
HarleyRider
Reviewed in the United States on November 8, 2024
Made a custom exhaust and heat shield, and after grinding out the welds I needed some putty to fill in some gaps, but it needed to handle the high heat a motorcycle exhaust system faces. This stuff was the exact thing I needed and it's held up very well. I used it for functional filling but also for some cosmetic detail work, it was easy to shape and dries ultra-hard so you can sand it to perfection.
Robert
Reviewed in Canada on August 30, 2021
Works great, turns hard as steel. Definitely something to keep in your emergency kit.I used this to patch the exhaust on my seadoo and it works great and much easier than bringing it to a welder for repair
HUSSEIN
Reviewed in Germany on November 29, 2018
Gut verpackung, sieht gut aus, gerne wieder
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