Silicone is a class of inorganic rubbers of various compositions and formulas made by linking silica atoms. Silicone was developed for its superior reliability, long life, and extreme temperature adaptability and stability. It will not become misshapen or break down due to extreme temperature exposure. Silicones can be found in liquid and solid form depending upon uses and curing process. Silicone Zone Bakeware is made using a high-temperature compression molding process.