J-B Weld Hight Heat

This stuff is great! I just used it to patch a cracked exhaust on our Toyota Corolla. I was about to invest 300 and parts plus an hour or two in labor. But when I inspected the exhaust closely from the Cadillac converter all the way back to the muffler. I noticed almost everything was in pretty good shape other than the one spot where there was a hairline fracture. Right after the joint, headed towards the muffler. On a whim, I decided to check on here to see what they had for muffler repair because I hadn’t been pleased with the local advanced auto had on the shelves. I found this and the JB weld muffler repair. I bought both, but I ended up going with this because I thought for my particular situation this would be the best. I’m glad I did. It was really easy to use. I prepped the area by wire brushing around the crack. And then using a rag with isopropyl alcohol to clean before applying. Wasn’t sure how much to use, but I put on a pair of latex gloves and cut approximately half the product to use. I mixed it with my hands while wearing the gloves until it was a uniform color and then I applied it to the crack all the way around the muffler. It was easy to apply and mold into the shape I wanted. It was only like 40° outside, so I propped up a heat gun from a distance and let that hit it for about an hour. After that, I didn’t start the car until the next morning but when I did, it sounded perfect again! So far I’m really happy. I haven’t driven the car much yet so I will keep the review updated. But so far I’m very pleased and hopeful based on other reviews. In my case, I would rate this an incredible value for the money!

I have this on-hand in case my old beater muffler gets a hole in it. It cures quick. I haven't used this batch yet but I know it works already. I've used JB Weld before. It's tough. This one is high temp and good for many uses. It's easy to use, just knead the two parts together and use it like putty. Clean the surface well and if suitable, sand the area lightly and you will get good adhesion. Make sure you clean the area with some brake cleaner or something like that to remove all oils. If you keep adhesives refrigerated you can extend the storage life dramatically

Very good quality, works as described, it sticks very good

Works well...but...not under pressure !!!

Great item & was delivered fast.

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.

It’s been a few weeks and it’s holding up well on a muffler pipe. We’ll see how long it lasts.

wow. best thing ever. i dont know how i am going to remove this when the time comes.... but i will deal with it then lol.this thing works when NOTHINGGG else works.I use this for a couple of different things, certain switches (again the wall) or extension cords again an upward surface. 3M velcro adhesion only for for a short period of time because the heat from the extension cord will loosen the adhesive then the extension cord will begin to fall/tilt. the clear,thick adhesions do the same thing. This high heat epoxy thing turns into rock hard and doesn't melt. I use some blue/green tape to hold it up for 12-24 hours or longer and then once i remove the tape, the extension cord will not budge. like i said, i dont know how i am going to remove it... but i will deal with it then.highly recommend.I need to try this on something outside lol

Good product. Good price Used it to plug holes in a classic car radiator as a cheap, temporary fix for testing a project.Easy to use. Took me a while to figure out the material was wrapped not in a cellophane tube. Once I’d figured that out it was easy to cut lengths off without disturbing the remainder.Worked well. Hardening time is longer than 8 hours in the UK. Leave overnight would be my advice. Pressure tight.Recommended

Tres efficace, facilite d utilisation

Product delivery than schedule but it look old and dusty.

للاسف كان به تسريب مايشبة زيت المحرك اعتقد انه بسبب سوء تخزين

i used this in my power steering pump and it stopped the leak, heat proof and durable. 100% recommended.