Castaldo Silicon Jewelry Molding Rubber- Super High Strength-Strips-5 Lb Box Electroplating and adjustability during long hours

and adjustability during long hours at the bench

5 1-1/8" x 7/8"

Platinum is 95% platinum / 5% ruthenium

Each set pairs a standard

Castaldo Silicon Jewelry Molding Rubber- Super High Strength-Strips-5 Lb Box Electroplating and adjustability during long hoursCastaldo Super High Strength Silicone Jewelry Molding Rubber delivers exceptional performance for professional jewelers who demand precision, durability, and efficiency in their casting workflow. This silicone mold rubber is engineered to be stronger than any other silicone molding rubber on the marketproducing complex molds that resist tearing and last through extensive use. Sold in a convenient 5 lb box of pre cut strips, it is ready to use straight