Blue in colour and is completely non-toxic. For general prototype work and for lost wax casting. Dimensionally accurate, has a good surface finish it can be turned, drilled, milled, threaded, sawn, moulded, carved and polished. However, because it is self-lubricating and has plenty of give, it will not damage machine tools or their operators. Plastic Wax is recyclable. Details of how to do this are provided with the product.