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Xiamen Seals Technology Co.,Ltd
Address: Unit233, No.273, Lingxia North RD, Huli High technology District, Xiamen, China
Tel: +86-592-5775761
Fax: +86-592-5775761
E-mail: info@sealsmanufacturer.com

NBR Oring

NBR Rubber Compound Oring

NBR Rubber Compound Oring

NBR Rubber Compound Oring In addition to our standard o-rings we had added several new items to increase production, performance and chemical resistance. Of the multitude of different O-Ring dimension standards in existence, the most popular in the United States is AS568 O-rings....
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NBR Rubber Compound Oring


Nitrile, chemically, is a copolymer of butadiene and acrylonitrile. Acrylonitrile content varies in commercial products from 18% to 50%. As the nitrile content increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases. 


About Nitrile / NBR:

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 (-30°F to +250°F), Nitrile /NBR is the most widely used elastomer in the seal industry today. Also many military rubber specifications for fuel and oil resistant O-rings require nitrile based compounds. It should be mentioned that to obtain good resistance to low temperature, it is often necessary to sacrifice some high temperature resistance. Nitrile compounds are superior to most elastomers with regard to compression set, tear, and abrasion resistance. Nitrile compounds do not possess good resistance to ozone, sunlight, or weather. They should not be stored near electric motors or other ozone generating equipment. 



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