NEW  addition cure molding putty silicone flexible and durable. 1:1 by weight; Working time 5min; Demolding/Cure Time: 20min; Shore 25 ShA. Soft and fine consistence putty to capture high details. Developed for restoration, jewelry and vertical application. We suggest using 100 + 100gr at least. Avoid sulpher-based modeling clays, latex products (gloves) and contact with tin-cure silicones, avoid contamination of part A with part B while working with it. Introduction to Silicon Mold-Making