The properties of HNBR depend upon the acrylonitrile content and the degree of hydrogenation of the butadiene copolymer. They have rather better oil and chemical resistance than Nitrile Rubber and can withstand much higher temperatures. It has excellent resistance to sour oil and gas, steam, hot water, and ozone. Physical properties (e.g. tensile and tear strength, elongation, abrasion resistance, compression set, etc.) are also excellent and compounds exhibit good dynamic behaviour at elevated temperatures. Limitations include poor electrical properties, poor Flame resistance, and attack by aromatic oils and polar organic solvents.
Temperature Range: -30°C to +150°C
HNBR Oil Seal Advantages: Good mechanical and physical properties, better oil and chemical resistance than NBR.
HNBR Oil Seal Suitable for: Oil and gas, steam, hot water, and ozone sour gasoline, fats, acids and alkalis.
HNBR Oil Seal Not-Suitable for: Ketones, strong hydrocarbons, aromatic oils and polar organic solvents.
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