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PMC OneFire® Sterling Silver .950 Metal Clay

OneFire Sterling PMC™ delivers the best of both worlds. Work, roll, cut, shape and fire versatile PMC® just like any other type of clay. Create jewelry, beads, components—anything you can do with clay, you can do with PMC!


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™. 

OneFire Sterling PMC™ contains a higher percentage of fine silver (95%) with just a touch of copper (5%) 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.


Composition: Metal powder (85% Silver, 5% Copper), water and organic binder (10%)

Firing temperature (torch firing not recommended): 1,650°F (899°C) for two hours to achieve highest hardness and maximum durability

Shrinkage: 15–20%

Melting point: 1,70

please note:
• Every variety of PMC® is sold by the metal weight, not the weight that includes the water and binders that burn off during firing. You get every gram of precious metal you pay for from PMC.
• PMC® has a strong adverse reaction to contact with aluminum. Do not use aluminum tools or allow your PMC to come into contact with any aluminum object.

*Packaging may differ

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