Castaldo® 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 market—producing 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 out of the box.
Features
-
Easy mold cutting—cuts like butter for effortless mold preparation
-
Superior tear resistance—strong enough to handle complex mold geometries without failure
-
Smooth, shiny mold surface—produces a mirror-like finish that transfers directly to wax injections, reducing post-cast polishing time
-
Self-releasing formula—waxes release cleanly without messy mold release sprays
-
Easy packing—spreads and presses into place with your fingers, just like putty
-
Long mold life—molds last through repeated wax injections
-
Pre-cut strip format—convenient sizing for quick, consistent packing
Specifications
| Product |
Castaldo® Super High Strength™ Silicone Jewelry Molding Rubber |
| Format |
Pre-cut strips |
| Strip Dimensions |
3/8" x 2 7/8" x 18" (6 mm x 7.3 cm x 45.7 cm) |
| Box Weight |
5 lb (2.27 kg) |
| Sold As |
Per box |
| Mold Release Required |
No—self-releasing formula |
What's Included
- One 5 lb box of Castaldo® Super High Strength™ Silicone Jewelry Molding Rubber strips