What is Polymer Clay?
Polymer clay is vinyl plastic and therefore is already waterproof, washable, and durable. It does not need sealing and in many cases adding a sealer, varnish, or glaze can ruin your piece.
Polymer Clay is made from PVC, which is a type of plastic found in bottles and bags – and are typically recycled for consumer use. PVC can be recycled six to seven times. With a product life of 100 years, this means that PVC material could potentially have a lifespan of 600 years. ... There is an opportunity to raise awareness of the market for waste PVC pipe—PVC pipe can be extracted from the waste stream and have an extended useful life.
Polymer clay is a plastic made of pigments, fillers, lubricants, plasticizers, oils and binders. Known for its versatility and pliability, polymer clay is a man-made, oven-bake modeling material made from a plastic, polyvinyl chloride or PVC base.