A rubber like polymer prepared from certain silicones. It maintains its elasticity and electrical properties over a wide range of temperatures and is widely used in sealants, gaskets, insulation, tapes, etc.
an elastomer in which alternating silicon and oxygen atoms make up the backbone chain of the polymer; lower physical properties than other rubbers but less sensitive to heat and cold than any other elastomer
Silicone rubber is a polymer that has a "backbone" of silicon oxygen linkages, the same bond that is found in quartz, glass and sand. Normally, heat is required to vulcanise (set) the silicone rubber; this is normally carried out in a two stage process at the point of manufacture into the desired shape, and then in a prolonged post-cure process. It can also be injection molded.