1, the material density is good, not easy to leak medium.
2, there are appropriate mechanical strength and hardness.
3, good compressibility and resilience, small permanent deformation.
4, no softening, no decomposition at high temperature, no hardening at low temperature, no brittle crack.
5, good corrosion resistance, in acid, alkali, oil and other media can work for a long time, its volume and hardness change is small, and does not adhere to the metal surface.
6. Small friction coefficient and good wear resistance.
7. Softness combined with sealing surface.
8. Good aging resistance and durability.
9. Convenient processing and manufacturing, cheap price and easy materials.
TECHNOLOGY
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