Addition type silicone rubber is usually composed of vinyl-terminated polyphenylsiloxane, low-molecular-weight silicone oil, silicone resin, platinum catalyst and the like. According to the different application requirements of silicone rubber, appropriate fillers, additives and inhibitors can also be added. Silicone has a wide range of applications. Since its inception, its applications have spread throughout electronics, electrical appliances, aviation, aerospace, medical, machinery manufacturing, food molds and other industries.

Addition type silicone rubber has excellent dielectric properties, excellent low temperature resistance, weather resistance and good adhesion. It is widely used in electronics and electrical for sealing, bonding, dipping, coating, etc.

In aerospace applications, the requirements for silicone materials are more stringent than general applications. The addition type silicone rubber that can be vulcanized at room temperature and heating conditions has been widely used in recent years due to its excellent electrical insulation, high and low temperature resistance, good thermal stability, ozone resistance and radiation resistance. Sealing and putty used in the aerospace industry. The biggest feature of silicone rubber is its low thermal vacuum weight loss. As an ideal space and polymer material, the bonding strength of its metal and polyimide can reach 2Mpa.

Addition silicone rubber does not produce any by-products in the process of vulcanization, and has the characteristics of short curing time, low linear shrinkage, non-toxic, odorless, physiologically inert, and stable fungicide. Therefore, addition molded silicone rubber is also widely used in the medical industry, such as dental impression materials, soft liners for denture bases, prostheses, medical tubes, cosmetics, etc. Compared with addition molding silicone rubber, condensed silicone rubber has better water absorption, hydrophilicity, and anti-permeability. Therefore, condensed silicone rubber is the most suitable soft denture liner material. In addition, the addition of silicone rubber also involves medical catheters. Medical silicone rubber catheters are the fastest growing and most widely used silicone rubber products. Addition-molded silicone rubber is mainly used in places that are in contact with blood or need to be embedded in the body.