FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 63x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-647535 O-ring Black63 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 242x7 Kalrez-FFKM - 90 Shore A - Black - SES-651613 O-ring Black242 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.8x2.2 Kalrez-FFKM - 90 Shore A - Black - SES-766211 O-ring Black11.9 mm  x 2.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 252x3.6 Kalrez-FFKM - 90 Shore A - Black - SES-770228 O-ring Black253 mm  x 3.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-644172 O-ring Black16 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 84x6 Kalrez-FFKM - 90 Shore A - Black - SES-648334 O-ring Black84 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 530x5.34 Kalrez-FFKM - 90 Shore A - Black - SES-654145 O-ring Black531 mm  x 5.34 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black104.28 mm  x 4.57 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35.2x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-645967 O-ring Black35.3 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 149.3x5.6 Kalrez-FFKM - 90 Shore A - Black - SES-650129 O-ring Black149.4 mm  x 5.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 537x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-654187 O-ring Black538 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 106.7x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-768787 O-ring Black106.8 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black16.52 mm  x 2.29 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black85 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 311x5 Kalrez-FFKM - 90 Shore A - Black - SES-652447 O-ring Black312 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.7x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-645369 O-ring Black27.8 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 34.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-645923 O-ring Black34.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 148x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-650088 O-ring Black148 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 530x7 Kalrez-FFKM - 90 Shore A - Black - SES-654148 O-ring Black531 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 105x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-768749 O-ring Black105 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18x4 Kalrez-FFKM - 90 Shore A - Black - SES-644398 O-ring Black18 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 89x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-648500 O-ring Black89 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 329x10 Kalrez-FFKM - 90 Shore A - Black - SES-652629 O-ring Black329 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32x11 Kalrez-FFKM - 90 Shore A - Black - SES-767165 O-ring Black32 mm  x 11 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 405x8 Kalrez-FFKM - 90 Shore A - Black - SES-771278 O-ring Black405 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black8.2 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 56.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-647235 O-ring Black56.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 227x7 Kalrez-FFKM - 90 Shore A - Black - SES-651395 O-ring Black227 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.65x0.97 Kalrez-FFKM - 90 Shore A - Black - SES-765933 O-ring Black7.65 mm  x 0.97 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 222x25 Kalrez-FFKM - 90 Shore A - Black - SES-770021 O-ring Black223 mm  x 25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black8.62 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 57.15x3.18 Kalrez-FFKM - 90 Shore A - Black - SES-647282 O-ring Black57.16 mm  x 3.18 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 230x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-651440 O-ring Black231 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.26x0.84 Kalrez-FFKM - 90 Shore A - Black - SES-765979 O-ring Black8.26 mm  x 0.84 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black231 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 41.2x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-646388 O-ring Black41.3 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black168 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 682x8 Kalrez-FFKM - 90 Shore A - Black - SES-654616 O-ring Black683 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black132 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44.5x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-646583 O-ring Black44.6 mm  x 2.4 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.