As we all know, the O-ring is made of a variety of rubber materials, and the rubber material of Haide Paike is fully covered. The commonly used O-ring materials are nitrile butadiene rubber (NBR), hydrogenated nitrile butadiene rubber (HNBR), EPDM, fluororubber (FKM/FPM), fluororubber (F-SIL/FVMQ), silicone rubber (SIL/VMQ), rubber. Neoprene rubber (CR), perflurane rubber (FFKM), tetrapropyl fluoro rubber (AFLAS), acrylic rubber (ACM) and so on. Faced with so many materials, how do we choose the right material O-ring? We share with you the advantages and disadvantages of different materials of O-rings, hoping to help you with O-ring material selection.

HNBR hydrogenated nitrile rubber research and development can be traced back to the 1870s, by Japan's Ruon company to carry out HNBR research, in 1995, Taiwan seal manufacturing company began to use HNBR material to produce seals, HNBR is a highly saturated special rubber elastic material obtained by NBR, that is, nitrile rubber after oxygenation.

Advantages of hydrogenated nitrile Butadiene rubber (HNBR) O-rings:

1.Hydrogenated nitrile O-rings have high temperature resistance. Compared with nitrile rubber, the molecular structure of hydrogenated nitrile rubber contains little or no carbon-carbon double bonds, which enables HNBR to have good heat resistance characteristics (high temperature up to 160℃).
2.Hydrogenated nitrile O-rings are resistant to ozone, a variety of chemical media and radiation.
3.Hydrogenated nitrile O-rings have excellent oil resistance and wear resistance.

Hydrogenated nitrile butadiene rubber (HNBR) O-ring disadvantages:
1.Hydrogenated nitrile O-ring use cost is high: Because HNBR hydrogenated nitrile rubber not only has NBR low temperature resistance, excellent wear resistance and other characteristics, but also can withstand high temperature 160℃, its use cost is much higher than NBR material.
2.Hydrogenated nitrile O-ring When the use environment is higher than 180℃, HNBR hydrogenated nitrile butadiene rubber can not meet the requirements.