Thermal vulcanized silicone rubber (HTV) is the most important kind of organic silicon products, methyl vinyl silicone rubber (VMQ) is the most important variety of HTV, commonly known as high temperature rubber. Methyl vinyl silicone rubber (rubber) is colorless, odorless, non-toxic, no mechanical impurities of the rubber, raw rubber according to the need to add appropriate reinforcing agent, structure control agent, curing agent and other additives together mixing, and then heating molding or extrusion molding, and then made of a variety of products by two stages of vulcanization. Its products have excellent electrical insulation, arc resistance, corona, electric spark ability, waterproof, moistureproof, shock resistance, good, with physiological inertia, permeability and other properties. Mainly used in aviation, instrumentation, electronic appliances, navigation, metallurgy, machinery, automobile, medical and health departments, can do various shapes of sealing rings, gaskets, pipes, cables, but also can do human organs, blood vessels, breathable film and rubber molds, precision casting of the release agent.