Silicone rubber molds are perfect to reproduce an object in the smallest details: its high elasticity, makes it adaptable to every reproduction requirement. By adding a specific catalyst, this substance hardens at room temperature creating a stable and irreversible rubber with considerable mechanical resistance. Its properties also include a remarkable resistance to temperature; characteristics remain unaltered up to over +250°C, while elasticity is maintained(even at -150°C), as well as resistance to chemical attacks, oxidation and ozone.