Castaldo Molding Rubber for Jewelry
Castaldo is the world’s leading professional jewelry molding rubber, trusted by jewelers for precise and consistent results.
It provides excellent flexibility, durability, and fine detail reproduction – perfect for repeated wax injections.
Gold Label: Ideal for detailed, heat-resistant molds.
White Label: Offers a harder finish with a smooth surface.
Easy to cut, trim, and doesn’t stick to wax. Compatible with all vulcanizing presses for producing top-grade rubber molds.