FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 487x5 Kalrez-FFKM - 90 Shore A - Black - SES-771856 O-ring Black488 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.7x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-643088 O-ring Black7.7 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 31.42x2.52 Kalrez-FFKM - 90 Shore A - Black - SES-645665 O-ring Black31.43 mm  x 2.52 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-647969 O-ring Black74 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158x6.9 Kalrez-FFKM - 90 Shore A - Black - SES-650295 O-ring Black158 mm  x 6.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 253x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-651744 O-ring Black253 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 377x5 Kalrez-FFKM - 90 Shore A - Black - SES-653081 O-ring Black378 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 597x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-654432 O-ring Black597 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.03x0.94 Kalrez-FFKM - 90 Shore A - Black - SES-766106 O-ring Black10.04 mm  x 0.94 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.5x0.5 Kalrez-FFKM - 90 Shore A - Black - SES-767062 O-ring Black29.5 mm  x 0.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 125x9 Kalrez-FFKM - 90 Shore A - Black - SES-769070 O-ring Black125 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 490x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-771876 O-ring Black491 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.78x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-643508 O-ring Black10.79 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40.01x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-646328 O-ring Black40.02 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 91.2x2 Kalrez-FFKM - 90 Shore A - Black - SES-648580 O-ring Black91.3 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 190x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-650847 O-ring Black190 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 330x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-652646 O-ring Black330 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 496x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-653945 O-ring Black497 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.5x1.25 Kalrez-FFKM - 90 Shore A - Black - SES-765582 O-ring Black3.5 mm  x 1.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.5x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-766726 O-ring Black21.6 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 61.8x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-767970 O-ring Black61.9 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 406x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-771292 O-ring Black406 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-642726 O-ring Black5 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black27.4 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 65x2 Kalrez-FFKM - 90 Shore A - Black - SES-647635 O-ring Black65 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black164.35 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black8.6 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 41.8x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-646414 O-ring Black41.9 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 116.8x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-649309 O-ring Black116.9 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 222x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-651333 O-ring Black223 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 367x7 Kalrez-FFKM - 90 Shore A - Black - SES-652993 O-ring Black367 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 602x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-654455 O-ring Black603 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.43x0.91 Kalrez-FFKM - 90 Shore A - Black - SES-766356 O-ring Black14.44 mm  x 0.91 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 41.5x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-767480 O-ring Black41.6 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 229x12 Kalrez-FFKM - 90 Shore A - Black - SES-770063 O-ring Black229 mm  x 12 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.65x1.63 Kalrez-FFKM - 90 Shore A - Black - SES-643078 O-ring Black7.65 mm  x 1.63 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.1x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-646255 O-ring Black39.2 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black120 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 245x5 Kalrez-FFKM - 90 Shore A - Black - SES-651647 O-ring Black245 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 385x5 Kalrez-FFKM - 90 Shore A - Black - SES-653150 O-ring Black385 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon

To provide even greater thermal stability and solvent resistance, tetrafluoroethylene (TFE) containing fluoroelastomer terpolymers were introduced in 1959. The latest FKM polymers have a much broader fluids resistance profile than standard fluoroelastomers, and are able to withstand strong bases and ketones as well as aromatic hydrocarbons, oils, acids, and steam. In 1975 a new fluoroelastomer family was introduced by Asahi Glass Co., FEPM, based on an alternating copolymer of TFE and propylene. It is marketed under the trade name AFLAS®.

The chemical resistance and high-temperature stability is due to the bulkiness of the fluorine atoms, shielding the polymer backbone and carbon-fluor bond from attack, and the high bonding energy of the carbon-fluor bond.

FFKM gives the indication for the types of improved properties for different applications.


Material: Fluorocarbon elastomers
Fluorocarbon rubber is an elastomer

Fluorocarbon elastomers are highly fluorinated carbon-based polymers that are used in applications that must withstand aggressive chemical and ozone attacks.

In general, with increasing fluorine content, the resistance to chemical attack is improved, while the low temperature properties decrease. However, there are special quality fluorocarbons that do have a high fluorine content at low temperature properties.

Good qualities:

  • Chemical compatibility
  • Good temperature resistance
  • Low compression setting
  • Resistant to minerals, oils and fats
  • Good gas tightness
  • Excellent resistance to non-polar media
  • Excellent weather and aging stability
  • Very good oxygen and ozone stability
  • Operating temperature range from -26 °C to +205/230 °C (-15 °F to +400/440 °F)
  • When used briefly, the material can tolerate even higher temperatures
  • Special compounds with improved chemical resistance are available
  • Brake fluids based on glycol
  • Low molecular weight organic acids

FFKM
FFKM are perfluoroelastomeric compounds that contain an even greater amount of fluorine than FKMO fluoroelastomers.

FFKM have an improved resistance to high temperatures and chemicals and are even resistant to environments where oxygen plasma is present for many hours. Certain grades have a maximum continuous service temperature of 327 °C / 621 °F. They are often used to make o-rings and gaskets that are used to make o-rings and gaskets that are used in applications where contact with hydrocarbons or highly corrosive liquids the case, or when a wide temperature range is encountered.

On this page we offer our range of N9EX certified O-Rings. Search for your specific O ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our N9EX certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.