You can use PMC® in just about any stable, well-lit area; a table or desk is ideal. A sheet plastic or a kitchenware lid makes a convenient work surface that allows you to rotate the work easily. Avoid using cardboard because it will draw water out of the clay and stiffen it. For this same reason, avoid working in a draft from a heater, air conditioner or fan.

PVC pipe used as a rolling pin

A thin film of olive oil on your fingers prevents the PMC from sticking to the skin and seals the surface against dehydration. Other useful tools are a plastic rolling pin (such as a piece of PVC pipe), a razor knife and a small burnisher.

Various pencil-like tools can be devised from toothpicks, skewers, chopsticks, popsicle sticks and scribes. You might find yourself collecting bits of fabric, plastic and wood to take advantage of PMC's wonderful ability to pick up textures.

Firing

PMC can be fired in any furnace that will sustain the required temperature with reasonable stability. Almost any kiln with a pyrometer, like those used for burnout or enameling, will work. The kiln should be located away from combustible surfaces and plugged into a properly wired socket so that its cord cannot be snagged or tripped over. It's helpful to have work gloves, long-handled tongs and a heat-resistant surface (like a brick) in front of the kiln to set work on when it comes out of the kiln. Cherokee Enterprises sells a programmable kiln that maintains a selected temperature for a set length of time, then shuts off automatically. Though not essential for success with PMC, this unit is designed specifically for silver clay and makes the firing process as foolproof as the modeling.

Shrinkage

When PMC is fired, the water and binder vaporize and disappear completely. Because these together make up about 30% of the original PMC, the object after firing is reduced to about 70% of its

This photo shows the shrinkage of PMC clay
original size (see photo at right). This offers exciting possibilities because the shrinkage is proportionate. All the images, textures and details you create in the original clay will be retained in the final version--only smaller! This is a little like using the reduction button on a photocopier and nearly as easy. PMC+ and PMC3 have a higher metal content. Once fired, PMC+ and new PMC pieces shrink to only 88% of their original size.
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