Ceramic material yields great results when sandcarved. Sandcarving removes the glaze and reveals the ceramic underneath. Since the ceramic material is white, it often provides a contrast of the art image without adding a paint-fill. However, colored paint can be easily added, or you can spray a clear coat; simply leave the photoresist stencil on after sandcarving and this becomes your painting stencil.
Ceramic requires a 4 mil or 5 mil self-stick photoresist film. I personally like to use 5 mil when sandcarving ceramics because I can raise my blasting pressure between 40 to 50 psi with 150 grit aluminum oxide or silicon carbide. This allows me to etch quicker at higher pressure. If the art image is a 4 mil design, then the ideal blasting pressure is 30 to 40 psi with 150 grit using SR3000 self-stick film, for example.
—Rayzist
