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Have a question as to refractory material to use. I am making a blown forge out of an old propane tank. I plan on making a brick for the gas air mixture,  then line the walls with kaowool and refractory.  anyone have a reccomendation on the refractory to use??

This design is a bastard of Wayne Coe's design...

 

Thanks

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I used castable refractory. It certainly was not fun to apply but it works great. This stuff requires a very specific amount of water to the mix and you have to do small batches at a time because it dries out quick. It was 2300°f rated if I remember well.

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For faster heat up (but shorter lifespan) you can simply apply a hardener(also called rigidizer) on the wool. It's much cheaper than itc-100, it will seal the fibers preventing airborne hazard. However it does not reflect heat like itc-100.

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I used 2" of insawool and 1/4" of satanite, 1/2" on the floor.

I can't remember if I bought 5 or 10 lbs though but I had a little left over that I will use on hamons.

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