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

only few days is just crack

Easy to apply following the instructions and so far seems to have done the job nicely. Was used to seal a rusted hole at a joint a couple of inches from a silencer section and has done exactly that. Well pleased as it was much cheaper and easier to do than to replace what would've ended up likely being the whole exhaust.

I tried the paste before this and it just cracked, this has stayed in one piece. It works great. Not much to say really. It cures on its own in a couple of hours or you can start the car and cure it quicker with the heat. I let mine sit overnight rather than rush it. Maybe that helps.

If you use this kit exactly according to the instructions it will work great. My leak was a hole about 3/4" wide and about 3" long, in a curve about two feet in front of the resonator tips. The exhaust is dual, but located about an inch apart. Just enough space to get the wrap through the gap. I prepped the surface with a wire wheel on my drill. I made the surface shiny all the way around the pipe and two inches on each side of the hole. So I had about 5" of pipe to wrap. I squeezed the pouch as directed and used the gloves. This stuff is a little drippy and messy, but if you are careful and operate slowly, you can get great results without getting drips all over you. The roll would not slip through the gap, so I had to unroll it to be able to pass it between the pipes. I'm working on a lift, so the tail could just dangle and not touch the ground. Anyway I was able to get at least five layers over the actual hole. It is like wrapping a mummy or an old style cast on an arm. After I got it wrapped, I changed gloves and did my best with the little thin strips of foil tape. I really think that is almost silly. It was barely long enough to really do anything and it will only stick to itself, and not to the wet "bandage". I wound up removing the tape after it cured. I started the engine and let it run for about 20 minutes and it was rock hard. With the location that it was, I could see it from behind the car, so after it cured for a couple of days, I gave it a coat of primer grey, so it would be less noticeable than the bright white under the car. I did the repair a couple of months ago and I have driven it a little over a hundred miles and it is still holding perfectly and sounds so much better than a leaky exhaust. And a repair like this was probably 30 times cheaper than replacing the exhaust on this car.

This GB weld works wonders…. This stuff is amazing