PMC+ 25g package

CONTENT: Sterling Silver (.950)

  • Easy as PMC Standard™ to work with this clay
  • One-step, open-air firing process (no need to embed in carbon)
  • OneFire Sterling silver alloy fires to .950 silver
  • Create jewelry, beads, components—do anything with OneFire Sterling PMC™

PMC OneFire 950 Sterling Technical Information

OneFire Sterling PMC™ delivers the best of both worlds. 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™. This clay 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.

Work, roll, cut, shape and fire versatile PMC® like any ordinary clay. After firing, your design comes out of your oven as a sterling silver object. Create jewelry, beads, components—anything you can do with clay, you can do with OneFire Sterling PMC™.

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  Firing Info

PMC OneFire Sterling is available in a 25g & 50g lump clay package.


  • Size: 25 & 50 grams
  • Brand: PMC®
  • Form: Clay
  • Shrinkage: 15–20%
  • Country of origin: Japan


Additional Specifications:
  • Composition: Metal powder (96%fine silver, 4% copper), water and organic binder (10%)

  • Metal Color: Pickle White
Physical Properties:

  • Firing temperature: 1,600–1,650°F (870–900°C)
  • Melting point: 1,700°F (927°C)


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.

Best ways to work with PMC OneFire 950

1 Strong and versitle higher-grade sterling silver clay that's as easy to use as fine silver clays

2 Great for making rings, bracelets and delicate, lightweight objects with an open-air, one-step firing

3 For projects that need more strength and less tarnishing than sterling silver

PMC OneFire p1

PMC OneFire p2