For use on CNC machinery, Plastic Wax is blue incolour and is completely non-toxic. For generalprototype work and for lost wax casting.Dimensionally accurate, has a good surfacefinish it can be turned, drilled, milled, threaded,sawn, moulded, carved and polished.However, because it is self-lubricating and hasplenty of ˜give™ it will not damage machine toolsor their operators. Plastic Wax is recyclable.Details of how to do this are provided with the product.