Castaldo Quick-Sil Soft & Flexible Two Part RTV Silicone Putty Mold Rubber-1 Kg (2.2 Lbs.) Kit Polishing Equipment This upper pattern roll fits

This upper pattern roll fits the following Otto Frei rolling mills:

self-contained polishing setup

Testing Range Up to 31 colored gemstones Probe 0

22mm × 3mm

Curated around the popular Revere Academy wax carving course

Castaldo Quick-Sil Soft & Flexible Two Part RTV Silicone Putty Mold Rubber-1 Kg (2.2 Lbs.) Kit Polishing Equipment This upper pattern roll fitsCastaldo Quick Sil Soft & Flexible is a two part room temperature vulcanizing (RTV) silicone putty that produces tough, strong, long lasting production jewelry molds for lost wax casting with 0% shrinkage. This is the newer, softer version of Castaldo's popular Quick Sil RTV Mold Rubber softer in relation to the original formula, which is now designated as Firm & Flexible (see part number 122. 613). Safe, non hazardous, and non toxic, Castaldo Quick