🔥 Wrap it. Fix it. Forget it. The ultimate exhaust repair solution.
J-B Weld ExhaustWeld is a high-strength fiberglass repair wrap impregnated with a special resin that resists temperatures up to 1100°F. It cures quickly—within 20 minutes with heat or 2 hours without—making it ideal for fast, durable repairs on exhaust manifolds, catalytic converters, mufflers, and tailpipes. Lightweight and compact, this 2" x 72" wrap delivers professional-grade performance for lasting exhaust system restoration.
Manufacturer | J-B Weld |
Brand | J-B Weld |
Model | J-B Weld ExhaustWeld |
Item Weight | 4.2 ounces |
Product Dimensions | 1.5 x 4.94 x 7.87 inches |
Item model number | 38572 |
Manufacturer Part Number | 38572 |
P**N
Easy fix
I drive a nissan pathfinder. I got a small hole in the catalytic converter it was just noisey. So I gave this a shot. It works awesome I guess i only got 3 wraps around, but my vehicle is now quiet again. I have another small hole close to the muffler. I think im gonna get some more and fix it good. I have no idea how long this holds, but for now its awesome and easy to use. The gloves that come with it are xl, because I use xl gloves at work
8**D
Mummified that pipe!!
Hello, this stuff is easy to apply I put this on my car exhaust pipe rusted and separated from the muffler and cat sanded, and just wrapped it, it was just that simple! Solved the problem cheaply and efficiently! Would HIGHLY recommend and use again!!
A**R
A little messy. Wear gloves
Works well.
M**K
A Mess, But Seems Good
I trust the brand, and I've had exhaust repair wrap fail before, so I went with JB Weld. Most repair tape is slightly sticky and has resin that melts and then cures in place. This stuff is fiberglass roving (cloth) that's in a packet of premixed wet epoxy. It's slippery and goopy. It's messy and a little tricky, especially if you don't have a lot of clearance.That said, the wrap is pretty forgiving, so you don't have to be perfect with it. The lightweight nitrile gloves included will probably tear, and I recommend having your own better-weight disposable gloves already. Don't work with your face below the pipe, because you may drip epoxy. Wear workclothes accordingly, and clean off any epoxy that gets on your skin.The pack includes aluminum tape to hold the wrap in place while it cures. I didn't use that -- I used stainless steel zip ties -- so I don't know how well the tape works, but it's probably OK. The epoxy takes a couple of hours to dry unless you sit there with the engine idling to keep the exhaust pipe hot. It seems secure when it's dry. This stuff is rated for higher temperatures than most repair wraps, which is definitely promising.
J**.
Reliable, but the length is questionable can only do a very small area
Definitely works and seals all of the putters from the small holes and cracks. I don’t believe it’s 72 inches. I can only get one wrap in a 1 foot area with enough to do two wraps on half of it so I definitely would not say it’s 72 inches but I could be wrong but overall the product works and my jeep is a lot quieter I do suggest taking the adhesive part off of the aluminum tape that holds it on for anyone that doesn’t read directions lol it will burn on other than that. Have a great day.
J**W
Quiet Cat!
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.
M**S
Messy Stuff but worked great
So I used this to seal around a clamp on my exhaust pipe that was leaking a little bit. The kit comes with vinyl gloves, a foil packet with the repair wrap, and some sticky foil. The instructions say to use the gloves, I would recommend wearing a second pair that cover a little more if you can - this stuff is really messy. Also, make sure you have a safe space to work because you need to work quickly. So mash the foil packet to mix around the goop inside and get it everywhere on the wrap. Then open it carefully and remove the wrap. It's pretty wet so it will probably stick to whatever you are doing. I wrapped the entire thing on mine with enough overlap to cover it well. The sticky foil is supposed to be used at this point to help hold the wrap in place while it cures. I didn't have much luck with that and the foil tape just tore when I wrapped it around. I ended up using some thin copper wire and wrapped it around the repair job. I let it all cure overnight and checked the next day and it had hardened up. I was able to remove what was left of the torn foil tape and then unwound the copper wire too. The repair has held in place now for about 3 months - so far so good!
C**
Patching exhaust holes
Had no problems works great , sealed my exhaust leaks.
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