For use on CNC machinery, Plastic Wax is blue in colour and is completely non-toxic. For general prototype work and can be used for lost wax casting.
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 recycle it are provided with the product.