Castaldo Econosil: Silicone Jewelry Mold Rubber- 2 7/8 x 18" Strips - 5lb Box

Econosil Red is a firm, clay-like silicone rubber that offers an economical path to high-quality jewelry molds. This 5 lb box of 2-7/8 inch strips is perfect for general-purpose molding where high heat-resistance and a firm mold are desired. The distinctive red color makes it easy to distinguish from other rubbers in a busy shop environment. It is widely used for creating durable molds for basic rings, charms, and solid jewelry components that don't require extreme flexibility.