- In addition to their temperature resilience, silicone rubber gasket sheets exhibit excellent resistance to ozone, UV radiation, weathering, and chemicals, including acids, alkalis, and oils. This chemical inertness ensures that they maintain their integrity and sealing capabilities over extended periods, even in harsh conditions. They also possess good electrical insulation properties, which makes them valuable in electrical and electronic applications.
These are comparable to type R and RST, except the outer case does not have a metal reinforcement ring. To compensate, the outside is not made of normal rubber, but a hard, heavy-duty rubber fabric. The advantage is that these types can be made in a split version. They are almost always produced to order, and made of NBR or FKM.
Today, traditional oil seals have to compete with a new variant oil seal, which is used in most modern engines.
Material Code ISO 1629
Even though it’s better than other materials in terms of toughness and wear time, it is preferably used in dry-running applications. The salient demerit of this material is its cost.

ff 10 spark plug. Whether you drive a compact car, a heavy-duty truck, or a high-performance sports car, you can trust that this spark plug will deliver the performance and reliability you need.
Rotary Wheel Of Auto Parts

Oil seal: get to know all the details about this timing chain kit component
Oil seals come in a wide range of types, and they also have various sizes.
When selecting the right oil seal for your machine from among these many varied types of oil seals, the following two criteria are very important.

Another common cause of black spark plugs is engine oil leakage. If oil is leaking into the combustion chamber, it can cause the spark plugs to become fouled with a black, sooty residue. This can lead to misfires and engine hesitation, as well as increased fuel consumption. It is important to address any oil leaks promptly and replace the spark plugs if necessary.