OneFire Sterling PMC™ delivers the best of both worlds. Work, roll, cut, shape and fire versatile PMC® just like any other type of clay. This Precious Metal Clay™ comes out of your kiln as a sterling silver object after just a one-step, open-air firing process (no need to embed in carbon!), and the clay is as easy to work with as original fine-silver PMC™. Create jewelry, beads, components—anything you can do with clay, you can do with PMC! OneFire Sterling PMC™ contains a higher percentage of fine silver (96%) with just a touch of copper (4%) to give it the strength of sterling with the bright whiteness of silver. This clay is ideal for more delicate designs and for pieces that just have to have the added strength. In addition, you can solder on your fired pieces with any grade of silver solder, and they are suitable for enameling, keum-boo, stone-setting, and even plating, if desired.