Product Details
Nitrile rubber, also known as NBR or Buna N, is a widely utilized sealing elastomer recognized for its resistance to petroleum-based fuels and lubricants, as well as its relatively low cost. Nitrile elastomers are copolymers of acrylonitrile and butadiene, with a variable acrylonitrile content ranging from 18% to 50%. Generally, standard NBRs have about 34% ACN content, which balances properties effectively. The curing system used can influence the material’s characteristics; sulfur-cured standard nitriles offer better low-temperature performance but are susceptible to hardening at high temperatures, while peroxide-cured nitriles provide superior heat resistance and lower compression sets, albeit at a higher cost and complexity. The standard temperature range for these materials is between -40°C (-40°F) and 100°C (212°F).
