Work, roll, cut, shape and fire versatile PMC Sterling™ like any ordinary clay. After firing, your design comes out of your kiln as a solid sterling silver object. Use a “925”quality mark on your finished piece. PMC Sterling™ is made in Japan and is available in 25-gram and and 50-gram. Composition: Metal powder (92.5% fine silver, 7.5% copper), water and organic binder Color: Pickle white after firing Shrinkage: 15–20% Firing temperature: 1500°F (815°C) Physical Properties (after firing): • Melting point: 1620°F (880°C) • Density after firing: 9.3 S.G. • Tensile strength: 190 N/ mm2 • Bending strength: 160 N/ mm2 • Surface hardness: 50 HV Important: Because of the copper content in this formula, firing is a two-step process. Step two requires a firing pan and activated carbon media. Please Note: PMC® has a strong adverse reaction to contact with aluminum. Do not use aluminum tools or allow your unfired PMC to come into contact with any aluminum object. Instructions Sheet
