What is an O-ring NBR?
An O ring from NBR is an elastomer, which is a synthetic polymer obtained by the copolymerization of acrylonitrile and 1,3-butadiene. The characteristics are partly determined by the amount of acrylonitrile in the material and this varies from 18% to 50%. As the acrylonitrile increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low-temperature flexibility decreases and the rubber can become brittle.
What is NBR used for?
- 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.
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