Silicone rubber sealing material refers to a type of rubber whose main chain is composed of alternating silicon and oxygen atoms, and two organic groups are usually connected to the silicon atoms. The introduction of benzene can improve the high and low temperature performance of silicone rubber, while the introduction of trifluoropropyl and cyano groups can improve the temperature and oil resistance of silicone rubber. Silicone rubber has good low temperature resistance and can usually work at -55 ° C.

What are the characteristics of silicone rubber oil seals?
The main feature of oil seals made of silicone rubber is that they can maintain rubber elasticity for a long time in the range of -100 ° C to+300 ° C. It can also work for several hours at 400 degrees Celsius. It has good high-temperature resistance. In addition, it has excellent performance.
Thermal stability, electrical insulation, weather resistance, ozone resistance, breathability, high transparency, heat dissipation, adhesion, fluidity, and demolding. Within the temperature range of use, silicone rubber does not have the ability to maintain a certain degree of flexibility, resilience, and surface hardness, and its mechanical properties do not show significant changes, and it can resist long-term thermal aging.

What are the drawbacks of using silicone rubber oil seals?
The disadvantages of silicone rubber oil seals are low mechanical strength, poor tear resistance, wear resistance, oil and solvent resistance, high shrinkage rate during vulcanization molding, and difficulty in controlling size during production.
Some special silicone rubbers have oil resistance, solvent resistance, radiation resistance, and can be used at ultra-low temperatures. Among them, fluorosilicone rubber not only has excellent silicone rubber properties, but also has the characteristics of oil resistance, solvent resistance, and chemical resistance, thereby expanding the application range of silicone rubber to various oil media, acid media, and chemical solvent media.

In the environment, it is currently an elastic body:
It can be used in fuel media ranging from -60 ° C to 230 ° C and is a very promising engine sealing material. However, similar to silicone, it has poor strength and low surface energy. It is a material used for verification and binding, and there are processing issues.
What industries are oil seals made of silicone rubber used in?
Due to the special performance of silicone rubber oil seals, they are widely used for sealing in instruments, electronic devices, navigation, metallurgy, engineering machinery, automobiles, medical and health fields.