Castaldo® has been a major part of jewelry casting since the industry’s beginning in the late 1940’s
Castaldo manufacture natural rubber products, which include white Label®, Gold Label® and no shrink pink® jewelry molding rubber in a variety of convenient sizes and forms. They are made from the latex sap of rubber trees grown on plantations in the forests of South East Asia.
Other Castaldo® rubber molding products such as our super high strength and Econosi® silicone molding rubber and LiquaCast® liquid rubber and based on man-made products produced by the chemical industry.