J-B Weld ExhaustWeld 2" x 72" Repair Wrap, White

Worked great on my wife’s exhaust and made it quiet again. I’ll be buying more to use when or if it starts to leak again as this took literally minutes to put on and after the 2hr cure time sounded like a different car (I only started it for a few secs) then killed it until the next morning and it sounds as good as it did before it had any leak and it had completely rusted into 2 pieces. Just follow the directions to the T and you’ll be fine and it’ll work for you too as long as you put other stuff to help patch it if possible. Would buy again and will buy another pack if two to keep on hand for emergencies.

I really did the work it was intended to do and now i can have a quiet ride without smoke seeping into the passenger area.

had a big rust area on my muffler bought this used it , it works but after about 3 months its starting to wear off , no good but i think it would be better for smaller patches

Anything with JB Weld name on it is good. I choose their products over all others

Only held for a few days

If your exhaust leak is in a tight spot, which most are, this product is difficult to use. Imagine loosing grip of the roll of mesh and have a goopy drippy mess dangling in your face. However, after a thorough cleaning with a wire brush and 36 grit sandpaper, I did manage to get it wrapped around the crack the developed between the catalytic converter and the pipe. The enclosed aluminum tape? Forget it. Use it for something else. Smooth the repair over good with your hands. Take the pouch it came in and squeeze the remaining compound out like its the very end of your last tube of toothpaste and slather that over the repair are well, massaging it into the mesh,I didn't like the idea of starting the engine and letting it cure with exhaust heat either. Let it cold cure for a couple hours, start the engine and let it run for about 10 minutes, then let it cool off. Then take the vehicle for a short easy drive. Keep your foot out of it to avoid a blowout. Let it completely cool off again, then its business as usual.So far I can't speak for the longevity of this product. I drove it a couple of times, and then it passed the safety inspection. Yesterday I ran the truck pretty hard for about 20 miles, and so far so good!I think the key to a long lasting repair with this product is starting with a clean surface that has been scored to promote better adhesion, and giving it a slow gradual curing with a heat and cool/expansion and contraction cycles.UPDATE: Unless you're just trying to get thru a state inspection, better think twice about this product. I put a little over 100 miles on the truck local driving and it held up OK, but yesterday I took it on a 300 mile road trip. By the time I got home it was getting noisy again. BUT, it did get me thru PA state inspection. I don't have to worry about fixing it until warm weather gets here again.

So what if it is a little messy...it should be so plenty of material for the cloth tape. They give a set of gloves for the hands and spread a little paper under your work and not a problem!This was my second purchase of this product for a hacked together exhaust for my portable generator to get the exhaust [ported out of the garage. Fist kit used and I let it set and it cured at Washington State ambient summer temperature. Last week there was a power failure and i finally used my get and the kit/patch held up just fine, though the aluminum tape came right off with the heat the wrap did not. But the pipe blew off in another spot so my second kit is to secure that splice.This time I used a heat gun to cure the wrap and did not bother with the aluminum tape. The wrap cured very quickly with the heat gun, it is not summer anymore so the extra heat was a good idea. Looking forward to the next power failure, I think I have it nailed! Great product J-B Weld!

Worked quite well on my exhaust break. Pulled the 2 halves together with wire and went over the break with this to seal it as best as I could. It worked and it's quieter.