Polymer Clay
Polymer Clay
"Polymer clay is essentially PVC, polyvinyl chloride. It is plastic, but until it is cured, it is a very malleable plastic. It can be shaped and reshaped a multitude of times without deterioration. As long as it is stored away from excessive heat and direct sunlight, polymer clay can sit unused for years and still be workable (though it may require softening additives if left for very long).
Unlike earthen clay, it doesn't have to be fired in a kiln, nor will it dry out at room temperature, like other clays will do. Polymer clay cures at significantly lower temperatures than earthen clays, so it can be easily hardened in a home oven or toaster oven. (In fact, the high temperatures in a kiln would ruin polymer clay and release potentially dangerous fumes.) Though it varies slightly by brand, most polymer clay must be cured at 265°F to 275°F (129°C to 135°C) for at least 15 minutes per ¼ inch (6mm) of thickness.
Polymer clay is available in a variety of brands (each with its own characteristics) and a rainbow of colors. There are several specialty clays, as well, including liquid clays. Different brands of clays can be mixed together to create a limitless palette of colors.
Artists and hobbyists alike love polymer clay for its brilliant colors, its ease of use, and the incredible range of possibilities it offers. The clay can be formed into any shape imaginable-from detailed miniatures for doll houses, to striking vessels and wall hangings, to beads of every description.
Polymer clay is rated non-toxic, but there are safety guidelines that should be carefully followed. First and foremost, it should not be eaten, so it may not be appropriate for very young children." -from PolymerClayWeb
