NBR - Nitrile - O-Rings

What is NBR?

NBR is an abbreviation for nitrile butadiene rubber, which is also called nitrile rubber. Well-known trade names for this elastomer are Nitrile® / Perbunan® and BUNA-N®. NBR is the most widely used elastomer in the sealing industry. This material is mainly used for applications where fuel and oil come into contact with the O-ring, but also for many other types of applications.

What is NBR used for?

  • Seals
  • O-rings
  • Gaskets
  • Pipe and Cable Covers

The advantages of NBR O-rings:

  • Resistant against oils, fats, hydrocarbons, diluted acids
  • Has good mechanical qualities and is wear-resistant
  • Good resistance to heat
  • It is powerful and elastic
  • It has a working temperature range of -40 °C tot + 130 °C (-30 °F tot + 250 °F)

The disadvantages of O-rings NBR:

  • It has limited resistance to weather and ozone conditions
  • Not well resistant to aromatic compounds, halogenated hydrocarbons, ketone brake fluids, and strong acids
  • Must be kept out of direct sunlight
  • The working temperature range is limited in comparison to other materials

find O-rings with other materials here.

o-rings, o ring, o-ring, oring, nbr o-ring