Hot vulcanized silicone rubber (HTV) is the most important category of silicone products, and methyl vinyl silicone rubber (VMQ) is the most important variety of HTV, commonly known as high-temperature rubber. Methyl vinyl silicone rubber (raw rubber) is a colorless, odorless, non-toxic, and mechanically impurity-free gel. The raw rubber is mixed with appropriate reinforcing agents, structural control agents, vulcanizing agents and other additives as needed. It is smelted, then heated and molded or extruded, and then made into various products through two-stage vulcanization. Its products have excellent electrical insulation, strong resistance to arc, corona, and sparks, are waterproof, moisture-proof, impact-resistant, and shock-resistant, and have physiological inertness, breathability and other properties. Mainly used in aviation, instrumentation, electronic appliances, navigation, metallurgy, machinery, automobiles, medical and health and other departments. It can be used to make various shapes of sealing rings, gaskets, tubes, cables, human organs, blood vessels, breathable membranes, etc. Rubber molds, release agents for precision casting, etc.