Shop for Oil Seals
Some disadvantages of NBR are poor ozone, sunlight and weather resistance as well as limited high temperature and flame resistance. For higher temperature resistance, a much better material to use is Silicone.
Intake Valve Cover Gasket: Importance in Engine Functionality
Rubber type
The metal case is the exterior (or frame) of the oil seal, the principal function of which is to give rigidity and strength to the seal. The material of the case must be selected depending on the environment where the seals are to be used. Often the metal case is covered by the same rubber material used in the sealing element, which also helps seal the exterior of the oil seal in the housing bore. Common case material types are:
Like any element of the engine, oil seals are subject to wear. Over time they can lead to possible leaks of lubricating liquid.
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