I am a manufacture of jeweler's mold rubbers, injection waxes, casting investments and related products such as silicone sprays,wax washes, investmment removers, silicone gaskets, etc. The mold rubbers include natural rubbers,liquid and heat cured silicones, as well as two part putty type silicones. The investments include premium gold and silver investment and Platinum investment that requires only water, no acid. The injection waxes include plasticized and standard grades. My experience in product development manufacturing extends over 40 years. Zero-D Products is in it's twentieth year of operation and we have dealers in every major market around the world.; www.zerodproducts.com