Originally developed in Japan during the 1990s, metal clay is a clay-like substance that when fired in a kiln or with a torch becomes dense like metal. We are proud to introduce Precious Metal Clay which contains fine silver (99.9%). The clay is made up of small silver particles combined with a non toxic binder and water. Once fired the non toxic binder burns away and the water evaporates, leaving the finished piece in its “original” state. You can finish it with a matt or semi-matt appearance simply by using a stainless steel brush.