Silicone rubber can be categorized into three major types based on its vulcanization mechanism: heat-vulcanized, room-temperature-vulcanized, and addition-reaction-cured. Each type possesses unique features, catering to diverse applications.

Heat-vulcanized silicone rubber, the earliest type, boasts high molecular weights and typically utilizes organic peroxides as vulcanizing agents under heating conditions. Key varieties include dimethyl silicone rubber, methyl vinyl silicone rubber, and phenyl silicone rubber. These rubbers maintain elasticity across a wide temperature range, suitable for extreme high and low temperatures.

Room-temperature-vulcanized silicone rubber, on the other hand, vulcanizes without heating, offering convenience in application. Addition-reaction-cured silicone rubber achieves vulcanization through addition reactions, renowned for its efficiency and environmental friendliness.

The exceptional performance of silicone rubber also lies in its extensive operating temperature range. Properly formulated silicone rubber retains elasticity from -100°C to 350°C, and even withstands instantaneous temperatures exceeding thousands of degrees in specific applications.

High Tear Strength Fumed Type Silicone Rubber