What is PMC?
Introducing Precious Metal Clay or PMC
Cutting edge technology meets the arts with a new way to work with metal. Precious Metal Clay or PMC is tiny particles of FINE SILVER suspended in an organic binder. It is not really clay, but it looks and feels like it. PMC also has many working properties of clay. Like clay, it can be molded, textured, and formed into a variety of shapes. Add a little water to PMC and you can use the “slip” like a glue to put leather hard, dried, or even fired PMC elements together to make more complex forms.

After the pieces are designed and formed they are fired in a kiln. A wonderful transformation then takes place. As the binder fires away, you are left with a piece of pure, fine silver, metal jewelry.

In theory PMC can be sawed, hammered, soldered, and drilled as in “traditional” metal working. Instead, with PMC, many of the conventional methods of metal working are not used, and other less labor intensive methods are implemented in the easier to manipulate “clay” stage.

When the metal comes out of the kiln, it is ready for tumbling, buffing, polishing, and finishing.

With PMC you can create designer jewelry in hours instead of days and weeks. Jewelry can be made with No prior experience, just a wild imagination, and a desire to unleash your creativity.

How Does PMC Work?
With the proper intense heat, the tiny particles of metal sinter or fuse together and the binder fires away. The result is a hard piece of metal. Because pure states of metal are used in PMC (.999 fine silver and 22kt gold), firescale or discoloring of the metal does not take place when heated by a torch or kiln. This discoloration is characteristic of many other metals that contain an alloy, or in other words another metal included as part of its makeup. ( I.E.: sterling silver is fine silver with an alloy of copper or nickel silver).

So what is the difference between the fired PMC and conventional metal? Because of its structure, PMC is more porous and less dense than conventional sheet metal or wire. In addition, sheet metal has gone through the milling process, which helps to “work harden” the metal and compress the molecules. This means that a piece of jewelry made of PMC is not as strong and has less tensile strength than the same piece made from fabricated or casted metal. Because of this, PMC is not recommended for some applications (discussed later).

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