Silicone rubber has excellent high and low temperature resistance, ozone resistance, oxygen resistance, light resistance and weathering resistance, excellent electrical insulation performance, special surface performance and physiological inertia and high air permeability, a wide range of applications. However, silicone rubber has low tensile strength and tear strength, poor acid and alkali resistance, and poor processing performance when manufacturing complex products. In recent years, many countries in the world have carried out a lot of improvement and research work, and achieved some results.

(1) Aerospace industry

Silicone rubber is an indispensable high-performance material in aerospace industry. It can withstand the ultra-cold of space and the heat of returning to the atmosphere, prolong the life of aircraft parts, reduce the cost of maintenance and repair, and reduce accidents. It is mainly used in aircraft body hole seals, electrical joints, sealing switches, dust and waterproof covers, gasket gaskets, jet engine and hydraulic equipment "O" sealing rings, oxygen masks, control diaphragms, hot air ducts and radar wireless shock absorbers. Burning-resistant silicone rubber is suitable for coating rocket fuel valves, power source cables and rocket manhole covers to avoid being burned by rocket jet flow. The room temperature vulcanized silicone rubber can be used as airtight sealing material for body, window frame sealing and shockproof and moisture-proof sealing material.

(2) Construction industry

Silicone rubber has good weather resistance and construction property, and has been widely used in the construction industry as an adhesive sealant, which exceeds other types of sealants. In recent years, a two-component sealant with low modulus and high elongation has been developed, which is used for concrete prefabricated parts with large joint movement and curtain walls and other large components. RTV silicone rubber is also used for sealing asbestos cement panel joints, bathroom tile joints and toilet appliances. As the price of rubber drops in the future, its application scope will be further expanded, such as replacing asphalt and neoprene in the application of highway joints. High temperature vulcanized silicone rubber sponge strip is used as sealing strip for doors and Windows of buildings.

(3) Medical field

Silicone rubber has good biocompatibility, small reaction to the body, stable performance, low blood coagulation, can withstand high temperature and high pressure multiple cooking, and can be processed into various shapes of products, such as film, sponge, air bag, is currently the most widely used in medicine of a kind of material.