PMC+ 25g package

CONTENT: Fine Silver (.999)

  • Several distinct firing options
  • Minimum firing time—10 minutes
  • Increased ratio of metal to binder over PMC Standard

PMC+ Technical Information

Work, roll, cut, shape and fire versatile PMC+™ like clay. After firing, it comes out of your kiln as a pure fine-silver object. PMC+ shrinks less and has a stronger molecular bond than original formula PMC®. It fires at a lower temperature, allowing you to combine sterling findings with your PMC+ before firing. PMC+ is suitable for torch-firing as well as kiln-firing.

Create jewelry, beads, components—anything you can do with clay, you can do with PMC®!

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  Firing Info

PMC+ is available in a 25g lump clay package and 6cm x 6cm sheet material 


  • Size: 25 gram
  • Brand: PMC®
  • Form: Clay
  • Shrinkage : 12%
  • Country of origin: Japan


Additional Specifications:
  • Composition: Metal powder (90%), water and organic binder (10%)
  • Color: Pickle white
  • Physical Properties:
  • Firing temperature: 1,652°F (900°C) for two hours to achieve highest hardness and maximum durability; or 1,470°F (800°C) for 30 minutes; or 1,560°F (850°C) for 20 minutes; or 1,650°F (900°C) for 10 minutes.
  • Melting point: 1,762°F (960°C)
  • Density after firing: 9.15 S.G. (rolled silver = 10.5 S.G.).


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+

1 Good strength clay—easy to manipulate, mold and texture

2 Useful for making pendants, charms, earring elements, beads and small sculpted items

3 Offers several firing options and one quick-firing temperature for only 10 minutes

4 Embed lab-created stones (CZs), porcelain shards and embeddable eyelets

PMC plus firing pamphlet