The largest liquid silicone rubber and products integration manufacturer in Western China
COMPOUND SILICONE RUBBER
rubber withstands high and low temperatures far better than organic rubbers.
Silicone rubber can be used indefinitely at 150℃ with almost no change in its
properties. It withstands use even at 200℃ for 10,000 hours or more, and some
products can withstands heat of 350℃ for short periods. Silicone rubbers are
thus suitable as material for rubber components used in high temperatures
also has excellent resistance to cold temperatures. The embrittlement point of
typical organic rubbers is between -20°and -30℃， compared to -60°to -70℃ for silicone rubbers. Even at
temperatures at which organic rubbers turn brittle, silicone rubber remains
elastic. Some products withstand extremely low temperatures of -100℃ and below.
speaking, silicone rubber hardness when heated in air, with decreasing
elongation as it deteriorates; but in sealed conditions it softens as it
deteriorates; and its operating life at high temperatures is shorter in sealed
conditions than in air.
results from the degradation of the siloxane polymer. Adjusting the silicone
rubber formula, using a different curing agent, and/or post-curing can help
prevent softening in hot, sealed conditions. Such products are available.