Polytek Siliglass is a two part RTV addition cure Silicone Rubber which cures to a water clear finish. If you're looking to make glass like shards or crystals this is the material for you. Perfect for special effects and prop applications in films as the product isn't dangerous to the actor or user.
As curing progresses, SiliGlass becomes harder and more brittle and the likelihood of breaking increases. Demold SiliGlass within one-half to one hour after mixing to prevent crumbling upon demolding. Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.