Silicone tube Cold resistance: General Rubber is -20 degrees ~ -30 degrees, but silica gel in -70 degrees, -60 degrees ~ still has good flexibility, some specially formulated silicone rubber can withstand very low temperatures.
Silicone tube Hardness: import silica gel softest -40 ± 5 degrees, domestic silica gel softest 50 ± 5 degrees, the hardest -80 ± 5 degrees.