Search:

Hey Bruno, I don't know about the porcelain powder, but the aluox
was very fine grit. Would probably abrade very little, but your point
makes sense nonetheless.

Sharpman

This is a cool topic. Very interested in the knowledge on how
to make a whetstone from abrasive powder.

Mixing aluox powder with porcelain powder is very easy. Why didn't
that guy use a hand...