FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 131.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-649699 O-ring Black131.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 482x6 Kalrez-FFKM - 90 Shore A - Black - SES-653861 O-ring Black483 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 93x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-768556 O-ring Black93 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.9x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-642468 O-ring Black2.9 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 46x10 Kalrez-FFKM - 90 Shore A - Black - SES-646671 O-ring Black46 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 196.2x7 Kalrez-FFKM - 90 Shore A - Black - SES-650951 O-ring Black196.3 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.3x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-646269 O-ring Black39.4 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 171x4 Kalrez-FFKM - 90 Shore A - Black - SES-650548 O-ring Black171 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x5 Kalrez-FFKM - 90 Shore A - Black - SES-646319 O-ring Black40 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 175x2 Kalrez-FFKM - 90 Shore A - Black - SES-650600 O-ring Black175 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.25x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-642758 O-ring Black5.25 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.41x2.26 Kalrez-FFKM - 90 Shore A - Black - SES-645054 O-ring Black24.41 mm  x 2.26 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 117.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-649338 O-ring Black117.6 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 429x6 Kalrez-FFKM - 90 Shore A - Black - SES-653507 O-ring Black430 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74x7.7 Kalrez-FFKM - 90 Shore A - Black - SES-768201 O-ring Black74 mm  x 7.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 36.1x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-646036 O-ring Black36.2 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black159 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 610x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-654479 O-ring Black611 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 133x10 Kalrez-FFKM - 90 Shore A - Black - SES-769158 O-ring Black133 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16.1x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-644193 O-ring Black16.2 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 88.5x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-648479 O-ring Black88.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 331x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-652656 O-ring Black332 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black36 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 434x6 Kalrez-FFKM - 90 Shore A - Black - SES-771485 O-ring Black434 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black81 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 30.5x3 Kalrez-FFKM - 90 Shore A - Black - SES-767104 O-ring Black30.6 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black399 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.28x1.27 Kalrez-FFKM - 90 Shore A - Black - SES-642759 O-ring Black5.28 mm  x 1.27 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 51x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-646959 O-ring Black51 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-643805 O-ring Black13 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.08x1.96 Kalrez-FFKM - 90 Shore A - Black - SES-646107 O-ring Black37.09 mm  x 1.96 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 163x3 Kalrez-FFKM - 90 Shore A - Black - SES-650396 O-ring Black163 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.6x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-646159 O-ring Black37.7 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 165x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-650447 O-ring Black165 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-646101 O-ring Black37 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black159 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 649x6 Kalrez-FFKM - 90 Shore A - Black - SES-654556 O-ring Black650 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black133.9 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 23.8x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-644991 O-ring Black23.9 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 422.2x6.9 Kalrez-FFKM - 90 Shore A - Black - SES-653459 O-ring Black422.3 mm  x 6.9 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.