Castaldo® Gold Label® jewelry molding rubber contains even more pure natural gum rubber than Castaldo White Label, making it exceptionally soft and pliable. Experienced mold-makers rely on this compound's superior flexibility for difficult molds with undercuts, where a stiffer rubber would break delicate wax patterns or make production impossible. The added pliability can translate directly into reduced labor costs on challenging pieces.
Available in 5 lb boxes in your choice of Strips or Ready Cut (Pre-Cut) format to suit your workflow.
Features
- Higher natural gum rubber content than Castaldo White Label for superior softness and pliability
- Ideal for complex molds with undercuts that would stress or break wax patterns with stiffer rubber
- Rubber is 1/8" thick throughout
- Strips format: 2-7/8" wide × 18" long — cut to your needed length
- Ready Cut (Pre-Cut) format: 1-7/8" × 2-7/8" with rounded edges, sized to fit popular industry-standard mold frames
- Vulcanize at 310°F for 15 minutes per 1/4" of mold frame thickness
- Sold in 5 lb boxes
Specifications
| Rubber Thickness |
1/8" |
| Box Weight |
5 lb |
| Vulcanizing Temperature |
310°F |
| Vulcanizing Time |
15 minutes per 1/4" of mold frame thickness |
| Compound Type |
Natural gum rubber |
Available Options
| Part # |
Format |
Dimensions |
| 122.584 |
Strips |
2-7/8" × 18" × 1/8" |
| 122.586 |
Ready Cut (Pre-Cut) |
1-7/8" × 2-7/8" × 1/8" |