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Nitrile (NBR) may be the most common elastomeric seal material for use in applications requiring oil resistance, durability and set resistance.  Nitrile materials are compatible with most hydraulic media, including petroleum oils, water glycol, water/oil emulsions and many synthetics.  A-8503 is a multipurpose grade 90 shore A category NBR.  It is suited to use in compression applications at temperatures from –37°C to +129°C (–35°F to +265°F).  It is suited to lip and compression seal applications and is commonly used in SKF Polyseal Inc. U cup seals and wipers. NBR is not recommended for use where exposed to sunlight or ozone.
  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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