ENVIRONMENTAL-Easy Mold Silicone Putty Kit. This putty is ideal for a wide range of impression type mold applications including Castin'Craft Clear Casting Resin, EasyCast Clear Casting Epoxy, wax, baking, chocolates, ice cubes, soap, plaster, air dry clay, concrete and low melt metals! This package contains 1/2 lb of silicone putty. Conforms to ASTM D 4236. Made in USA.