In 1991 scientists in Japan, from the Mitsubishi Materials Corporation, developed a wonderful new product called, Precious Metal Clay, or PMC. These scientists used a combination of binders and metal particles to create a material with the working properties of modeling clay. The end product is water-soluble and comes in the form of lump, sheets, slip, and ready-to-use syringes and is available in fine silver or 22kt gold. 
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