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Room temperature vulcanized silicone rubber
Apr 07, 2018

Room temperature vulcanized silicone rubber

     Room Temperature Vulcanized Silicone Rubber (RTV) is a new type of silicone elastomer that came out in the 1960s. The most remarkable feature of this type of rubber is that it can be cured in situ at room temperature without heating or pressing. It is extremely easy to use. Therefore, as soon as it appears, it quickly becomes an important part of the entire silicone product. Room temperature vulcanized silicone rubber has been widely used as adhesives, sealants, protective coatings, potting and molding materials. It has its uses in all walks of life.

classification of Room temperature vulcanized silicone rubber

    Room temperature vulcanized silicone rubber can be divided into one-component and two-component room-temperature vulcanized silicone rubber according to its packaging method. According to the vulcanization mechanism, it can be divided into condensation type and additive type. Therefore, room temperature vulcanized silicone rubber can be divided into three types according to the composition, vulcanization mechanism and the use of different processes, namely single-component room temperature vulcanized silicone rubber, two-component condensation type room temperature vulcanized silicone rubber and two-component addition room temperature vulcanized liquid silicone rubber. The three series of room-temperature vulcanized silicone rubbers have their own characteristics: One-component room temperature vulcanized silicone rubber has the advantages of convenient use, but the deep curing speed is more difficult; the advantage of two-component room temperature vulcanized silicone rubber is that it does not release heat when it is cured. Shrinkage is very small, no expansion, no internal stress, curing can be carried out on the inside and surface at the same time, can be deep curing; addition curing vulcanized silicone rubber time is mainly determined by the temperature, therefore, the use of temperature adjustment can control the curing rate .

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