Where can I get asbestos powder? (Yes, I know it's danerous.)
I seriously doubt you'll find any, and I wouldn't want to get
anywhere near it. But, back in my early trade shop days, we used to
use something that, at the time, I thought was powdered asbestos. We
mixed it with water to make a thick paste to keep stones protected
from heat during soldering. Turns out it was a product called
"Feldina" which was actually a feldspar compound of some sort.
Gesswein used to carry it, but the last time I called them to order
some they told me the manufacturer is no longer making it. It was
real "old school" but I thought it worked better than the gelatenous
stuff like "Kool Jool", etc. Yes, I've tried Stuller's product, and
it works well, but it's still gooey. Fine sand with a little water
works well, even tissue paper wetted and worked into a paste.
David L. Huffman