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

Only put it on a couple of days ago but so far so good. Was easy to wrap onto exhaust and cured very quickly.

Ok. Well, I didn't expect a great deal for an exhaust bandage to be honest, but I'll happily eat my words at the moment. Had a rather hefty leak near a gasket joint, just after the cat, so a matter of a few foot away from the turbo. Instructions were very simple, and once you've managed to coat the bandage in goo (all in a package, so you don't get coated.. yet) The wrap comes out slathered in a white paste, and its easy enough to place and maneuver, but its a bugger to keep in place.. The aluminium foil strip, I found, was useless, and I ended up using zip ties whilst the resin hardened. I decided to let the resin harden for a few hours instead of running the car. But I do have to say.. wow... this stuff is rock solid and patched a hole for a while. Don't usually recommend things like exhaust repair bandages, but good lord.. if you need a temporary repair thats going to last.. get this.

Easy

Not great for anything but a straight hole cover. Also a messy a job to fit.

Very good product but sadly the repair didn't last as the hole was to big.

Did exactly the job it was supposed to do on the motorbike between aftemarket slip on exhaust and stock pipe

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.

The instructions say that once cured, ExhaustWeld "hardens like steel". This did not happen for me, despite "neading" the bandage in the bag and leaving the repair for 24 hours to cure (in warm weather). A few days later, I was able to peel the bandage off with very little force. The resin made the bandage a bit crusty but definitely not hard like steel. It was still pretty soft like a bandage. This is over 3 times the price of the GunGum exhaust bandage on Amazon, so I was expecting good results. I think this product would successfully patch up holes, but does not add much strength to the repair. Not enough to make me feel confident about driving the car long distances with this kind of repair!

only few days is just crack

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.

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.

The flange for my catalytic converter is rusting out almost completely and the garage said it's $700 just for the part. Figured I'd try this stuff first and see what it can do. After applying it in the fall the check engine light went away and exhaust sounded and performed back to brand new. I assumed it wouldn't last through the tough Canadian winter and by the end of the winter I started noticing my exhaust getting loud again. Took a look at it and the wrap held up perfectly but my converter is now rusting out from the other side so I'm just going to buy 2 more wraps. These things seem to hold up pretty well. Just going to keep adding wraps until the whole exhaust falls off because who can afford to fix their vehicle anymore with this economy. I did notice there's a bit of a burning smell coming off and it smoked a bit at the start so keep an eye on that but nothing started on fire so probably fine. If my car lights up and burned to the ground it would probably end up being a good thing for me since who can afford to buy a new car in this economy. Might as well just let everything fall apart and burn to the ground these days, since I'll likely own nothing and yeah sure I'll be happy why not. At least we saved 40 grandmas and our governments can make bank off carbon taxes.

Worked as expected.