Review on 🔧 Permatex 80335 Muffler and Tailpipe Sealer: Ultimate 3 oz. Solution! by Paarvin Freedman

This material is intended as a one part epoxy for the repair of exhaust systems. The consistency is similar to toothpaste. Easily shaped/smeared/instrumented with a gloved finger or the back of a plastic spoon, popsicle stick, etc. However, avoid getting on the skin if you can. It won't bridge large gaps on its own—you'll need heat-resistant fiber tape, fiberglass mat, or a suitable piece of metal—but it does seal small holes and torn seams fairly well. Smooth it out to your liking and then let it air dry for 30 minutes. Then you run the engine for about 10 minutes to warm up the exhaust system and that cooks everything to rock hardness. It is best to first clean the repair area with a wire brush. I don't think you need to do this all the time, but if you don't want to do it twice, just spend a few minutes preparing the metal. might get him back from repair, so do it calmly first. When it's really hardened it seems to be holding up well. This applies to minor repairs to a good exhaust system or a patch to an exhaust that is bolted in place. If it works, then it works. This stuff is cheap, quick, and easy, and it works well if you're careful.