Polymer clay is a versatile material of varying softness, which is kneaded before baking in an oven at a low temperature (from 212-275 degrees F). Once hardened, the clay will last for many years. Once the clay has hardened, you can file it, cut it, and place it in the oven again.
Popular brands of polymer clay include: Firmo, Cernit, Gemmacolor, Premo, Friendly Clay, Modello, Modurit, Limmo, Crealltherm, etc. Each brand has its own characteristics, so choose the one that works best for what you are making, or mix the brands together to create an end result that has the desired resistance, flexibility and brightness you’ve envisioned.
Are Polymer Clays Non-Toxic?
Yes, polymer clay is non-toxic; it is mainly made of polyvinvyl chloride powder, plasticizers to give it flexibility when baked, and fillers such as calcium carbonate to give the clay some volume. Stabilizers maintain the clay’s coloring and hinders thermal deterioration. PVC (polyvinyl chloride) is the base of this heat-hardened clay; while the polymerization process of vinyl chloride is highly toxic, it occurs ONLY in watertight reactors in large industries — not in your home. So do not worry — once on the market, the PVC powders are non-toxic.
Polymer clay is white, but the vibrant options available to you by adding non-toxic color pigments help you to beautify your creations in any way you are inspired.