Blue Magic 8024 ThermoSteel High-Temp Metal Repair - 24 oz.

Used this to finally patch and attach my Kuhn Rikon pressure cooker pan handle that needs replacing every year or so.. (see my post on that) I wrapped it in wire mesh, installed a stud rather than use their screw and fashioned a conforming handle with this. All I can say is the flames from the stove don't seem to effect it at all and it is very strong. Hard to mix and can be runny. Appears to be a mixture of epoxies, glass and resins. But unlike low temp stuff it doesn't seem to melt, crack or expand with high heat. Tested temp at the pot handle and it was 720F.

Used this stuff to patch the inside of our wood burning stove. It took 2 applications in some spots because the cracks were so big, but it has held very well. I've noticed a lot of negative reviews say this doesn't hold up when exposed to water. That may be true, but a wood stove has no water to worry about so it works great for that!

If you need something that will stand up to extreme temps, this might be for you, but it was not for me. I just needed something that would take some heat but also stand up to moisture. I was unlucky enough to buy this just before the reviews of it not being water proof showed up so I was quite disappointed when it dissolved! Because of this I'm better off with a 2-part epoxy for my purposes. Maybe I'll have other uses for it in the future, but I'd be sure to coat it in something to protect it from water!Be sure to mix this thoroughly before use. Basically the stuff sinks in the water so you have to stir it back up to turn it into a goop. As the water dries, it solidifies like depositing sediment providing a little bit of control over how runny it is. Although it is much more runny than putty and great for flowing into a mold or something. It is an interesting material if nothing else.

This stuff is fantastic and have been using for years. I have used it to repair a crack in my exhaust manifold of my Motorhome's 460 Ford engine. It is the only I have found material that will work at these high temperatures. I touch it up every spring just to be safe and it never leaks. Ten minutes work and that is it!!

Very gritty, should be much smoother, crumbles when dried