I have access to some pure bentonite clay. Is this any good for use as lining for a forge? I've read about mixing clay with some sand and wood ash, just wanted to see if this would work before I made a mess with it! LOL.... Thanks.
Aaron
Anyone? Is there a better type of clay to use.
I'm no expert on clays and firing, but I do remember from my Soils class in college (a long, long, time ago) that Bentonite is one of the clays that has a very high shrink/swell ratio, so I wouldn't think it would be good for a forge lining unless you could get it dry without breaking up or distorting badly from excess shrinkage.
I could be wrong- it happened once before, I think about 1967...
Thanks. I knew it had a very high shrink/swell potential and that's why I was asking. Didn't want to waste my time if it was useless. Thanks again.
Aaron