Due to the high flexibility of the main chain, polysilicon has a very low glassy transition and curing temperature. The cell point of silicone rubber is the lowest among all rubbers , so it has the low-temperature elasticity of meat.
Generally speaking, the cellular point of general-purpose silicone rubber is within the range of -60 to -50℃, while the embrittlement point of specially formulated rubber can reach -100 ℃.