Heat-vulcanized silicone rubber (HTV) is the most important type of silicone products. Methyl vinyl silicone rubber (VMQ) is the most important type of HTV, commonly known as high-temperature rubber. Methyl vinyl silicone rubber (raw rubber) is a colorless, odorless, non-toxic, non-mechanical impurity gum. Raw rubber is added with appropriate additives such as reinforcing agents, structure control agents, vulcanizing agents and other additives. Smelting, and then temperature-molding or extrusion molding, and then two-stage vulcanization into various products. Its products have excellent electrical insulation, strong resistance to arc, corona and electric spark, waterproof, moisture-proof, impact resistance, shock resistance, physiological inertia, breathability and other properties. Mainly used in aviation, instrumentation, electronics, navigation, metallurgy, machinery, automotive, medical and health departments. It can be used for sealing rings, gaskets, tubes, cables of various shapes, as well as human organs, blood vessels, breathable membranes, and Rubber molds, release agents for precision casting, etc.