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Nitrile Rubber (NBR)

About Nitrile Rubber (NBR)

Nitrile rubber is a type of synthetic rubber that is configured from a copolymer of butadiene and acrylonitrile.
Depending on the amount of acrylonitrile that is included, differences are created in the properties of the rubber.
If the amount of included acrylonitrile is increased, the oil resistance will increase, but in contrast the low temperature flexibility will be adversely affected.
If the amount of included acrylonitrile is decreased, the low temperature flexibility will increase, but in contrast the oil resistance will be adversely affected.
This material is a typical oil resistant synthetic rubber that realizes one of the best balances between price, processing ability, and performance, and various grades are available according to the application.

Fujikura Rubber’s NBR
Heat resistance and oil resistance are essential for the rubber components used in automobiles and gas appliances, which are the main products of Fujikura Rubber, and these required properties are satisfied with the best balance by this NBR material.
This material also has a favorable processing ability, and it has been widely used for rubber-only and fabric-containing diaphragms, which is mainly characterized by thin membranes, as well as for product types such as valve seats with complex shapes.
* We can offer composites with hardness between 30 and 90 [Durometer A] and a wide range of hardness settings.
* PVC blend composites are also available, which have improved ozone resistance and oil resistance.
* We will adjust the shape according to your request as far as possible. Please contact us for more information.

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