2 methyl silicone rubber is put into commercial production as early as a silicone rubber, can be -60 ~ 200 ℃ within the framework of maintaining good flexibility, anti-aging performance, has excellent electrical insulation properties, as well as moisture, vibration and physical inertia, etc. characteristics. Dimethyl silicone rubber is mainly used for fabric coating can also be made into a variety of extruded and calendered products for the electronics, aerospace, automotive and medical industries. However, dimethyl silicone rubber vulcanization low activity for the manufacture of thick products, the curing difficulties, the inner and bubbling hot compress large permanent deformation, it has now been replaced by methyl vinyl silicone rubber.