Castaldo Quick-Sil Firm & Flexible Two Part RTV Silicone Putty Mold Rubber-1 Kg (2.2 Lbs.) Kit

Castaldo Quick-Sil Firm & Flexible is a two-part room temperature vulcanizing (RTV) silicone-molding putty that produces tough, strong, long-lasting production jewelry molds for lost wax casting with 0% shrinkage. Castaldo Quick-Sil Firm & Flexible is safe, non-hazardous and non-toxic and does not produce unpleasant fumes or odors. It is easy to use - merely mix equal parts of part A and part B by hand. There is no need to measure precisely or vacuum in order to achieve optimum results. No need for vulcanizing but it does work best if the product is clamped under pressure like in a vise or an unheated mold press. Castaldo Quick-Sil comes with precise detailed instructions for use. 2.2 Lbs. (1 kilo) Kit.  Firm & Flexible is the original formula Quick-Sil silicone putty. A new Soft & Flexible version is now available, see part number 122.6135SOFT

Castaldo Quick-Sil Firm & Flexible is designed to make molds for lost wax casting, but it can also be used for direct casting of low temperature metals such as lead, tin, pewter, etc.

Work time 1-2 minutes. Cure time approximately 15 minutes.

Castaldo Quick-Sil is intended for professional use only and only by persons familiar with jewelry casting techniques.