Castaldo® Gold Label® Mold Rubber- Strips, 5 lbs.

Castaldo® Gold Label® is a more pliable, natural mold rubber that has a high concentration of pure natural gum rubber, which makes it resilient and pliable; characteristics that will enhance your mold-making process.  Castaldo® Gold Label® is ideal for difficult patterns that might break in a stiffer/hard mold. Castaldo® natural organic mold rubbers require a release agent (see related products).  Castaldo Jewellery Natural Molding Rubber has been the industry standard for more than 40 years and continues to be the best jewellery molding rubber available for lost wax jewellery casting.  Supplied in convenient pre-cut strips which makes it easy to cut and use.  Also available in a5 lb convenient roll.  Made in Thailand

Specifications:

Dimensions :   18"L x 2.875"D (Strips)

Roll Weight:   5 lbs / 2.27kg

Vulcanization Temperature: 307°F (153°C)

Rubber Shrinkage: 2.1%

Vulcanization Time: 15-30 Minutes (Depending on Mold Thickness)