PMC Silver Clay was a combination of water, binders, and small particles of either silver or gold. It is molded by hand into a desired shape then heated in a kiln or torch to remove the binder and fuse the metal powder into a solid form. The result retains all the marks of the maker, transformed into a precious and durable object. Precious Metal Clays are clay-like materials that shape easily, then amazingly fire into a pure metal object! PMC can be formed and worked just as you would clay, shrinkage (8-12%). All types are perfect for creating sized designs, such as rings and earrings. They fire at a low temperature in a short time! Allowing firing with a propane torch, or even on the gas stove top.