FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 12x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-766226 O-ring Black12 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black265.4 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 41.2x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-646391 O-ring Black41.3 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 174.3x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-650594 O-ring Black174.4 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1060x10 Kalrez-FFKM - 90 Shore A - Black - SES-654808 O-ring Black1061 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black152.5 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.25x1.27 Kalrez-FFKM - 90 Shore A - Black - SES-642508 O-ring Black3.25 mm  x 1.27 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 47.6x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-646764 O-ring Black47.7 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 197.49x3 Kalrez-FFKM - 90 Shore A - Black - SES-650964 O-ring Black197.50 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.56x1.27 Kalrez-FFKM - 90 Shore A - Black - SES-765590 O-ring Black3.56 mm  x 1.27 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 189x10 Kalrez-FFKM - 90 Shore A - Black - SES-769757 O-ring Black189 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 36x8 Kalrez-FFKM - 90 Shore A - Black - SES-646032 O-ring Black36 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black155 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 602x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-654453 O-ring Black603 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.68x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-644008 O-ring Black14.69 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black80.68 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 312x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-652452 O-ring Black313 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.6x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-767070 O-ring Black29.7 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 403x5 Kalrez-FFKM - 90 Shore A - Black - SES-771265 O-ring Black404 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.37x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-642642 O-ring Black4.37 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 49.94x3 Kalrez-FFKM - 90 Shore A - Black - SES-646897 O-ring Black49.95 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 206x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-651098 O-ring Black206 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6x5.2 Kalrez-FFKM - 90 Shore A - Black - SES-765793 O-ring Black6 mm  x 5.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 205x9 Kalrez-FFKM - 90 Shore A - Black - SES-769895 O-ring Black205 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-642983 O-ring Black7 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55x6 Kalrez-FFKM - 90 Shore A - Black - SES-647172 O-ring Black55 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 230x2 Kalrez-FFKM - 90 Shore A - Black - SES-651439 O-ring Black231 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.6x4.8 Kalrez-FFKM - 90 Shore A - Black - SES-766069 O-ring Black9.6 mm  x 4.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 254x6.35 Kalrez-FFKM - 90 Shore A - Black - SES-770241 O-ring Black254 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.9x1.25 Kalrez-FFKM - 90 Shore A - Black - SES-643531 O-ring Black10.9 mm  x 1.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black68 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 266x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-651919 O-ring Black266 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19x9 Kalrez-FFKM - 90 Shore A - Black - SES-766610 O-ring Black19 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black323 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black7.3 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 57.2x3 Kalrez-FFKM - 90 Shore A - Black - SES-647284 O-ring Black57.3 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 234x6 Kalrez-FFKM - 90 Shore A - Black - SES-651484 O-ring Black234 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.33x2.39 Kalrez-FFKM - 90 Shore A - Black - SES-766183 O-ring Black11.34 mm  x 2.39 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black261 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 28.2x1 Kalrez-FFKM - 90 Shore A - Black - SES-645421 O-ring Black28.3 mm  x 1 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.