FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 11.6x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-739746 O-ring Black11.7 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 278x3.15 Kalrez-FFKM - 90 Shore A - Black - SES-743960 O-ring Black278 mm  x 3.15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-542889 O-ring Black5 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 220x7 Kalrez-FFKM - 90 Shore A - Black - SES-546996 O-ring Black221 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.5x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-582058 O-ring Black64.6 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.3x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-739374 O-ring Black6.3 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 236x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-743659 O-ring Black237 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-542838 O-ring Black4 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black229.6 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 68x7 Kalrez-FFKM - 90 Shore A - Black - SES-582119 O-ring Black68 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.2x0.98 Kalrez-FFKM - 90 Shore A - Black - SES-739435 O-ring Black7.2 mm  x 0.98 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 244x10 Kalrez-FFKM - 90 Shore A - Black - SES-743723 O-ring Black245 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-542943 O-ring Black6 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black245 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74.17x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-582222 O-ring Black74.18 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.5x1.35 Kalrez-FFKM - 90 Shore A - Black - SES-739541 O-ring Black8.5 mm  x 1.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 258x10 Kalrez-FFKM - 90 Shore A - Black - SES-743824 O-ring Black259 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 481.46x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-541625 O-ring Black481.47 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 164x8.3 Kalrez-FFKM - 90 Shore A - Black - SES-546549 O-ring Black164 mm  x 8.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 42x8 Kalrez-FFKM - 90 Shore A - Black - SES-581553 O-ring Black42 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.4x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-738936 O-ring Black1.4 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 172.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-743153 O-ring Black172.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-543497 O-ring Black16 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 324x3 Kalrez-FFKM - 90 Shore A - Black - SES-547658 O-ring Black324 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 106x2.2 Kalrez-FFKM - 90 Shore A - Black - SES-582661 O-ring Black106 mm  x 2.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.25x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-740068 O-ring Black17.25 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 322x9 Kalrez-FFKM - 90 Shore A - Black - SES-744270 O-ring Black323 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13x0.99 Kalrez-FFKM - 90 Shore A - Black - SES-543309 O-ring Black13 mm  x 0.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 284.75x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-547404 O-ring Black284.76 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 92x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-582474 O-ring Black92 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.5x4.8 Kalrez-FFKM - 90 Shore A - Black - SES-739805 O-ring Black12.5 mm  x 4.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 296.86x4.76 Kalrez-FFKM - 90 Shore A - Black - SES-744086 O-ring Black296.87 mm  x 4.76 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 193.7x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-546791 O-ring Black193.8 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55.25x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-581864 O-ring Black55.26 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.2x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-739185 O-ring Black4.2 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 209.27x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-743473 O-ring Black209.28 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.65x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-544344 O-ring Black37.66 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 142.6x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-546322 O-ring Black142.7 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 761x6.35 Kalrez-FFKM - 90 Shore A - Black - SES-585556 O-ring Black762 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158x11 Kalrez-FFKM - 90 Shore A - Black - SES-742997 O-ring Black158 mm  x 11 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 N9LT 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 N9LT certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.