Silicone Jewelry Molding Rubber

Castaldo Super High Strength™ Molding Rubber

A superior quality medium hardness jewelry molding rubber with extreme tear and tensile strength for every application including spirals, cores, cut-outs & plugs as well as for general purpose use. Can be used with Econosil® on the outside for additional stiffness or on the inside for additional dimension stability.

Rapido™ Jewelry Silicone Molding Rubber

Castaldo Rapido jewelry molding rubber is a VERY FAST version of our Super High Strength™, Econosil™ and other silicone jewelry molding rubbers that can speed up your work significantly.

Gelato Super High Strength Silicone Jewelry Molding Rubber

Castaldo® Gelato® Super High Strength Silicone Jewelry Molding Rubber cuts like butter. It resists tearing and is strong enough to make complex molds that are stronger than any other silicone molding rubber on the market. Molds last and last.

Molds self release!
There is no need for messy mold release spray. Castaldo Super High Strength Silicone Jewelry Molding Rubber gives waxes a smooth, shiny finish that won’t stick to the mold. And shiny waxes mean less finishing!
Mold packing is easy!
All you have to do is spread and press it in with your fingers. Just like putty.

Mold cutting is easy!
Castaldo® Gelato® Super High Strength Silicone Jewelry Molding Rubber cuts like butter. It resists tearing and is strong enough to make complex molds that are stronger than any other silicone molding rubber on the market. Molds last and last.

Castaldo Econosil® Jewelry Molding Rubber

Castaldo Econosil® Jewelry Molding Rubber is a harder, firmer but still flexible version of our Castaldo Super High Strength™ silicone jewelry molding rubber at a lower cost.