Methyl vinyl silicone rubber (raw rubber) is a colorless, odorless, non-toxic, no mechanical impurities of jelly, raw rubber, according to the need to join the appropriate reinforcing agent, the structure control agent, vulcanizing agent and other additives mixed together, then heat moulding or extrusion molding, then through secondary sulfide into various products. The products with excellent electrical insulation, arc resistance, corona, edm capability is strong, waterproof, moistureproof, impact resistance, good shock resistance, with physiological inertia, permeability and other performance. Is mainly used in aerospace, instrumentation, electronic appliances, navigation, metallurgy, machinery, automobile, medical and health departments and so on, can make various shapes of sealing ring, gasket, pipe, cable, also can do human organs, trachea, breathable membrane and rubber mold, precision casting release agent, etc