EasyMold Silicone Putty is a strong and flexible mold making material. This putty has a working time of three minutes, cures in 20 minutes and exhibits no shrinkage after curing. No releasing agent is necessary. EasyMold Silicone Putty captures fine detail and is categorized as food-grade safe so it can be used in some baking applications (can be heated up to 400F/204C). Suitable for use with: plaster, plaster mixes, concrete, wax, soap, low-melt metals, chocolate, ice cubes, resins and air dry clays.