Castaldo Mold White Label Roll
Castaldo White Label Jewelry Molding Rubber – 5 lbs Pre-Cut Natural Gum Rubber The gold standard in traditional jewelry mold making. Castaldo White Label is a premium, firmer natural organic gum rubber designed to create durable, high-precision molds for lost-wax casting.
Castaldo Mold White Label Roll
Castaldo White Label is a traditional natural organic molding rubber widely used by jewelers and casting professionals. It is the firmer and harder counterpart to Castaldo's Gold Label, making it an ideal choice for specific structural mold requirements.
Key Features & Benefits
High Firmness & Rigidity: The dense consistency makes it exceptional for flat pieces, rigid designs, and molds that require minimal stretching or shifting during wax injection.
Pure Natural Gum Rubber: Features a high concentration of natural rubber, offering great resilience, pliability, and high tear resistance.
Standard Vulcanization: Cures reliably in a standard vulcanizer press at around 307°F (153°C) for 15 to 30 minutes depending on thickness.
Flexible Formatting: Available in convenient 5 lb boxes of pre-cut squares, pre-cut strips, or standard rolls to fit your workshop frame size.
Note: Because it is a natural organic rubber, it requires a mold release spray to prevent wax patterns from sticking.
