J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz, Grey

Used this product to repair a splash grill inside my oven. A bracket to hold the grill in place had broken off. I used this compound to re fit the bracket to the grill which has to deal with very high temperatures. Excellent results, the bracket is now fitted to the grill again and everything back to normal. Would purchase this product again.

Good product

Used it to seal a hole in a silencer box about the size of a penny. Not ideal as it was on the lower face of the box. Held in place with tape after application whilst curing. Winter application so curing took more than 24 hours. The seal held but the repair ballooned. Still in place but not an invisible repair. Useful as an interim repair.

Got my old banger through its MOT and I know it needs a whole new exhaust system!! Have tried other brands this is by far the best and can tell straight away. Make sure you wire brush, sand and clean the area you’re applying it to. I didn’t have a problem with it sticking. It is a small tub though, I needed to order another one to seal all the holes but at least I didn’t mix up more than I needed.

Claims it can be drilled, far too brittle and weak for that. How do they make such a claim?

Used on slight crack on exhaust manifold, followed instructions 100%. Lasted the first day took car out. And came off.....No good for use. Also remaining product in container no use , dried up so couldn't re do repair. Not fit for purpose.

I managed to shear the heads off the 2 bolts holding the EGR inlet pipe to the exhaust manifold on my Land Rover Disco when fitting a blanking kit. Managed to drill the upper bolt out and put an M6x35 bolt coated with some of this paste through with a nut on tight on the back but could not get a drill bit on to the lower one or get behind it. Used regular exhaust assembly paste between the plate and the manifold as a basic gasket and a small bead as far round as I could, let that set then piled on a generous amount of this paste to get it air tight and well sealed. That was 6 weeks ago and I have been checking it regularly and nothing has moved or cracked what so ever. Very happy that it saved me from pulling the manifold and having to drill and tap 2 new holes which would of been a pain & long job. It does give you a pretty good almost cold weld. This paste is seriously tough and sets like metal and is withstanding 600 degrees plus easily along with preventing any movement of the plate. Am very impressed and will no doubt find more uses for the rest of it now I know it is strong and withstands a lot of heat and vibration. It is far far superior to it's lower temp resistant J.B. Weld high heat paste and of course loads better than standard fire putty or exhaust paste which cracks easily with vibration and becomes quite brittle towards the top of its temp range.

Fantastic product, will still be there when the car has disintegrated.

kanon

Amazing result. Used on an old gas oven door. Unable to get parts to repair handle but this product did the trick. Very pleased.

Super produit, A permis de réparer une fuite de boîte de vitesses.

I bought it to fill the gap developed in high pressure vessel..it is very good and handy in such situations..highly recommend.

Reparer un coude d’echapement sur un bateau le temps d’avoir la piece de rechange.