This Precious Metal Clay™ comes out of your kiln as a sterling silver object after just a one-step, fire straight on the kiln shelf no need to embed in carbon and the clay is as easy to work with as original fine-silver PMC™. Great for all your silver creations but with the strength of sterling silver which can be hallmarked by the Assay Office.


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.


This package contains 50g metal weight. Firing temperature: 1,600–1,650°F (870–900°C) for one hour.

PMC 950 Sterling Silver Precious Metal Clay 50g UK

  • Composition: Metal powder (96% fine silver, 4% copper), water and organic binder
    Color: Pickle white
    Shrinkage: 15–20%
    Physical Properties:
    Firing temperature: 1,600–1,650°F (870–900°C)
    Melting point: 1,700°F (927°C)

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1st Floor The Forge Works, Ditchfield Common, High Wycombe, Bucks HP14 3HJ