What does PMC stand for?
PMC is a brand of pure silver clay produced by Mitsubishi Materials Corporation. It stands for Precious Metal Clay. The logo mark of PMC on products is designed by Tim McCreight, a famous author, jeweler and PMC artist in America and a professor at an art college.
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Role of organic binder
The organic binder in PMC glues the pure silver particles. Because it is organic, it consists of carbon, hydrogen, and oxygen. When fired at high temperature in the atmosphere (where oxygen exists), the carbon turns into carbon dioxide, hydrogen plus oxygen into water vapor, and some oxygen is used in the chemical reaction. The organic binder totally disappears without a trace. |
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Safety of the PMC series on the human body
PMC is composed of pure silver particles, organic binder, and water. Generally, silver is not toxic; it is often used in tableware. The organic compound of the binder is not toxic. The American Society for Testing & Materials (ASTM), an inspection institute in the United States, certified the conformity of the gas generated from the clay or during the firing of the clay with the ASTM D4236 standard. Some, depending on their physical constitution, may experience an adverse reaction. If so, immediately stop using the product. If you fire with the material other than PMC, be careful because harmful gas (irritating smell) may be emitted. If a large amount of PMC is fired in a closed room, it may create a deficiency of oxygen. Ventilation must be provided.
A few individuals are allergic to silver. In this case, immediately stop using silver pieces. |
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Weight notation of the PMC series
Basically, the (net) weight of silver in the product is stated for each product of the PMC series. The clay-type product displays (gross) product weight as well. PMC becomes pure silver after firing. We believe that customers pay for the value of silver. Mitsubishi Materials Corporation, as a leading precious metal producer, has a policy to clearly declare the weight of silver and to ensure that the silver of the declared weight is contained in the product. |
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