HNBR (Hydrogenated Nitrile, Buna-N)

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HNBR Seals & O-Rings offer improved performance and higher temperature capability over traditional NBR.

Hydrogenated Nitrile is the addition of hydrogen to the polymers chain of NBR (Nitrile Buna-N).

Competitive lead times & pricing from Lanson Polymers allied with our vast experience in the design & supply of critical seals & components into a variety of markets will allow you to specify the optimum solution for your application.
A wide variety of seals and components can be manufactured using HNBR Materials including:
O-Rings, T-Seals, L-Seals and Cap Seals amongst others.


Lanson Polymers Hydrogenated Nitrile (HNBR) Compounds

LP-224: 75 Durometer – Temperatures from -20°C up to +150°C – general use compound

LP-204: 80 Durometer – Temperatures from -20°C up to +150°C – general use compound

LP-206: 90 Durometer – Temperatures from -20°C up to +150°C – Rapid Gas Decompression Resistant compound

The above compounds are only a small sample of our broad range of HNBR materials – please contact us to discuss your particular application and we can recommend an optimum solution.

Temperature Range

-20°C to +150°C


A good standard material which can be used across multiple applications including O-Rings, other seals or components.
Please contact us for more information.


When compared to NBR

  • Improved Mechanical Strength
  • Improved high temperature performance
  • Improved steam resistance
  • Better resistance to ozone, ageing and weathering