What material is the cylinder sealing ring made of?

What material is the cylinder sealing ring made of?
The cylinder sealing ring is made of nitrile rubber, which has excellent corrosion resistance, tear resistance, and compression deformation characteristics. It is currently the most widely used and lowest cost rubber seal.
The material of the cylinder sealing ring is:
1. Nitrile rubber sealing ring is suitable for the use of petroleum hydraulic oil, ethylene glycol hydraulic oil, dimethyl lubricating oil, gasoline, water, silicone grease, silicone oil, and other media. It is currently the most widely used and cheapest rubber sealing element, and is not suitable for polar solvents such as ketones, ozone, nitrohydrocarbons, methyl ether, and chloroform. The general operating temperature range is - 40 to 120 ° C;
2. HNBR hydrogenated nitrile rubber sealing ring has excellent corrosion resistance, tear resistance, and compression deformation characteristics, ozone resistance, sunlight resistance (check transaction price | reference | preferential policies), good weather resistance, and better wear resistance than nitrile rubber;
3. Silicone rubber sealing ring has excellent heat resistance, cold resistance, ozone resistance, and atmospheric aging resistance. It has good insulation performance, but its tensile strength is worse than ordinary rubber, and it is not resistant to oil. It is suitable for household appliances such as electric water heaters, electric irons, microwave ovens, and other household appliances. It is also suitable for various articles that come into contact with the human body, such as water bottles, water dispensers, etc. It is not recommended to use in most concentrated solvents, oils, concentrated acids, and sodium hydroxide, The general operating temperature range is - 55 to 250 ° C.
There are more than 10 types of rubber sealing rings, such as butyl rubber oil resistance, fluorine rubber oil resistance, hydronitrile oil resistance, fluorosilicone rubber oil and high temperature resistance, silicon high temperature resistance, PTFE wear resistance, etc. There are many types of rubber sealing rings, and generally, it is more important to choose suitable sealing rings based on their own requirements.
The cylinder sealing ring is generally made of nitrile rubber, natural rubber, neoprene, ethylene propylene rubber, fluororubber, silicone rubber, and blended rubber.