🔥 32oz Gry Hi Temp Cement by United States HDW MFG/U S HA KK0284-A: High Quality, Reliable and Durable Review

Used this to fix a broken firewall. Let it dry twice as long as the documentation requires. The first fire product bulged. If you come into contact with it, large pieces will flake off.

Must be diluted with water, otherwise you can't model this product. But it will drip onto a smooth surface as it hardens. Really great product.

I saw a few posts online saying this stuff can fix exhaust manifold leaks so I bought this to fix a leaking manifold on my 9 year old Toyota. I smeared it around the rim of the manifold where it meets the engine block and let it sit for 12 hours. Then, to "bake” it, he started the engine for 2 minutes, turned it off and sat for another 6 hours. It worked great, no more exhaust click!

I should give this one star but it barely works so I'll give it two. I used this on a pre-made mantel. There was a noticeable crack on the bottom plate and while it was still safe to use they wanted to avoid any risk and covered the bottom with this cement. I bought 3 tubs (although I only needed 1). After the first application everything looked great. It adheres well to brick and siding and applies very smoothly. I let it dry for 20 hours and then tried a propane torch. Maybe it was too…