When sandcarving metal, it’s important to know that you will not obtain depth with metal surfaces unlike other substrates like glass or crystal. When sandcarving stainless-steel tumblers, you will only remove the coated surface or polish of the metal surface.
The best settings for sandcarving this type of item is using a silicon carbide 150 grit at 35 psi.
-Liz Haas, Rayzist
