Hydrogenated Nitrile (HNBR)

Hydrogenated Nitrile (HNBR) is made by selective hydrogenation of the NBR butadiene groups. HNBR is recognized for its strong physical strength for long term exposure to heat, oil and chemicals, as well as, cost effectiveness.

Hydrogenated Nitrile (HNBR)

HBNR rubber is commonly used in place of nitrile where temperature is a factor.

It fills the gap between NBR’s and FKM’s. The unique properties of HNBR rubber allow it to be used over a wide service temperature from -40° to 320° F. Overall, HNBR elastomers have excellent resistance to standard automotive grade fluids and a variety of industrial chemicals. The cost advantage for demanding applications requiring superior physical properties coupled with fuel, oil and chemical resistance makes it an excellent polymer choice.

HNBR rubber has poor electrical and flame resistance properties. It is attacked by some oxygenated solvents and aromatic hydrocarbons.

Material Specifications

  • Hardness: 30-95 Durometer – Shore A
  • Tensile Strength: 1,500 – 3,500 PSI
  • Elongation: 90% – 550%

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