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Industry news

【 O-ring knowledge 】 Product characteristics of perfluoroether rubber (FFKM) O-ring
Category:Industry news Source:This station Datetime:2023-10-19 09:00:00 Hits:367

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.

Perfluoroether rubber is referred to as FFKM, also known as perfluoroether rubber or perfluoroether rubber elastomer, perfluoroether O-ring is also known as perfluoroether sealing ring. In terms of molecular structure, FFKM perflurane rubber is different from FKM fluorine rubber, FFKM perflurane rubber has a higher fluorine content. With its superior physical properties and its expensive price, perflurane O-rings are currently mainly used in semiconductor factories, petrochemical industry and other industries.


Advantages of FFKM O-rings:

1. FFKM O-ring has excellent high temperature resistance, FFKM O-ring high temperature working environment can reach 260℃-290℃, special material number can be up to 316℃ high temperature environment still have sealing ability.
2. FFKM O-ring has the strongest ability of chemical media, and FFKM O-ring can resist a variety of chemical media, such as: strong acid, strong base, nitrogen compounds, ketones, hydrogen carbide, lipids, alcohols, aldehydes, water vapor, oil, amino compounds and other chemical media corrosion.


Disadvantages of FFKM O-rings:

1. FFKM O-ring raw materials are rare, the overall performance of the material is excellent, the price is very expensive, so it is currently only used in extremely demanding environments.



Our company specializes in the production of high-precision seals, for O-rings have rich experience in production and product application experience. If you need to order or request more information, please call+86-027-88779150 or submit the product inquiry form.