FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 51.99x1.14 Kalrez-FFKM - 90 Shore A - Black - SES-767740 O-ring Black51.100 mm  x 1.14 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.5x2.3 Kalrez-FFKM - 90 Shore A - Black - SES-643992 O-ring Black14.5 mm  x 2.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 221x7 Kalrez-FFKM - 90 Shore A - Black - SES-651319 O-ring Black221 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9x5.5 Kalrez-FFKM - 90 Shore A - Black - SES-766028 O-ring Black9 mm  x 5.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 79.6x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-648172 O-ring Black79.7 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 660x7 Kalrez-FFKM - 90 Shore A - Black - SES-654587 O-ring Black660 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 322.33x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-770722 O-ring Black322.34 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.5x4.2 Kalrez-FFKM - 90 Shore A - Black - SES-644116 O-ring Black15.5 mm  x 4.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 367x5 Kalrez-FFKM - 90 Shore A - Black - SES-652991 O-ring Black367 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black59.100 mm  x 4.01 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 139.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-649889 O-ring Black139.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16.25x1.98 Kalrez-FFKM - 90 Shore A - Black - SES-766465 O-ring Black16.25 mm  x 1.98 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 94.97x1.75 Kalrez-FFKM - 90 Shore A - Black - SES-648677 O-ring Black94.98 mm  x 1.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.92x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-765959 O-ring Black7.92 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.5x1 Kalrez-FFKM - 90 Shore A - Black - SES-643340 O-ring Black9.5 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 512x4 Kalrez-FFKM - 90 Shore A - Black - SES-654047 O-ring Black512 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 100x5 Kalrez-FFKM - 90 Shore A - Black - SES-648830 O-ring Black100 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 48x4.2 Kalrez-FFKM - 90 Shore A - Black - SES-767640 O-ring Black48 mm  x 4.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 61.98x2.03 Kalrez-FFKM - 90 Shore A - Black - SES-647488 O-ring Black61.99 mm  x 2.03 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.18x1.22 Kalrez-FFKM - 90 Shore A - Black - SES-766174 O-ring Black11.19 mm  x 1.22 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 530x4 Kalrez-FFKM - 90 Shore A - Black - SES-654142 O-ring Black531 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 515x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-654066 O-ring Black516 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.35x2.79 Kalrez-FFKM - 90 Shore A - Black - SES-642907 O-ring Black6.35 mm  x 2.79 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 557.69x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-654266 O-ring Black557.70 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.6x2.1 Kalrez-FFKM - 90 Shore A - Black - SES-766990 O-ring Black27.7 mm  x 2.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.48x0.63 Kalrez-FFKM - 90 Shore A - Black - SES-765579 O-ring Black3.48 mm  x 0.63 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-644042 O-ring Black15 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35.5x1 Kalrez-FFKM - 90 Shore A - Black - SES-767266 O-ring Black35.6 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-647973 O-ring Black74 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 328x5 Kalrez-FFKM - 90 Shore A - Black - SES-652620 O-ring Black328 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74.5x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-647998 O-ring Black74.6 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 447x6 Kalrez-FFKM - 90 Shore A - Black - SES-653636 O-ring Black448 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 175x8 Kalrez-FFKM - 90 Shore A - Black - SES-650613 O-ring Black175 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-687008 O-ring Black55 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55.7x4.6 Kalrez-FFKM - 90 Shore A - Black - SES-767812 O-ring Black55.8 mm  x 4.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15x3 Kalrez-FFKM - 90 Shore A - Black - SES-644045 O-ring Black15 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black105.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-645021 O-ring Black24 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 249x3 Kalrez-FFKM - 90 Shore A - Black - SES-651687 O-ring Black249 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 295x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-652260 O-ring Black296 mm  x 2.5 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.