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Nitrile, Buna N, or NBR is the most widely used elastomer in the seal industry. The popularity of nitrile is due to its excellent resistance to petroleum products and its ability to be compounded for service over a temperature range of -35°C to 120°C .
Nitrile is a copolymer of butadiene and acrylonitrile. it has excellent resistance to mineral oil, greases, water, hydrocarban fuels, compression set resistance and good elastic properties, it is not suitable to automotive brakes fluid.
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