HNBR, commonly called Hydrogenated Nitrile or Highly-Saturated-Nitrile is a special Nitrile material formulated to increase strength and reduce fluid attack.  The process eliminates double-carbon chemical bonds that allow chemical attack in conventional NBR materials.  The resulting compounds have much higher strength, abrasion resistance and chemical resistance.  HNBR materials may be substituted for NBR in all applications but are superior in aliphatic hydrocarbons and water or steam up to +300°F.  HNBR is not recommended for use with strong acids or chlorinated hydrocarbons.  C-7021 is formulated to have a wider temperature range, making is suitable for use in both mobile fluid power applications and many conditions requiring resistance to fuel, fluids and oxidation.  A 70 shore A category material; it is commonly used for T-seals, Z Seal lips and other compression seal applications.  The recommended application range is -40°C to +149°C (-40°F to +300°F).
  1. 1)Values are typical averages only. Test information is based on specific conditions and limited sample size, and is only for general guidance. It does not supercede published data for the product. Customer must decide suitability for his purpose. Information applies at room temperature unless specified otherwise.
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