Nitrile Butadiene Rubber (NBR)
Nitrile Rubber (NBR): A Versatile Oil-Resistant Material
Nitrile Rubber (NBR) is one of the most widely used compounds for oil resistance today, offering excellent durability and wear resistance. Its oil resistance is influenced by the acrylonitrile (–CN) content in its composition. A higher acrylonitrile content improves oil resistance, while a lower content enhances low-temperature flexibility.
NBR operates effectively within a temperature range of -25°C to 100°C, making it ideal for a variety of industrial and automotive applications. However, prolonged exposure to temperatures exceeding 100°C may reduce the material’s lifespan. Its balance of oil resistance and wear durability makes NBR a popular choice for demanding environments.
Advantage
- Great resistance to oil~100℃
- High strengthen (the special formula can reach higher than 20MPa)
- High tensile
- Good resistance to water
Disadvantage
- Not applicable to hydraulic oil with phosphoric ester
- Not applicable to the gear oil with extreme pressure additive
- Not resistance to hot water and fuel
- It is not aromatic hydrocarbon and chlorinated hydrocarbon resistance.
- Not applicable to polar solvent, such as ketone, ozone, Nitro compound, MEK and Chloroform