FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 16x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-580345 O-ring Black16 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.2x0.41 Kalrez-FFKM - 90 Shore A - Black - SES-739360 O-ring Black6.2 mm  x 0.41 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.89x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-739561 O-ring Black8.89 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-739829 O-ring Black13 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.37x4.34 Kalrez-FFKM - 90 Shore A - Black - SES-740076 O-ring Black17.37 mm  x 4.34 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26.5x3.25 Kalrez-FFKM - 90 Shore A - Black - SES-740499 O-ring Black26.6 mm  x 3.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35.4x2.2 Kalrez-FFKM - 90 Shore A - Black - SES-740810 O-ring Black35.5 mm  x 2.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40.5x3 Kalrez-FFKM - 90 Shore A - Black - SES-740984 O-ring Black40.6 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 50.5x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-741248 O-ring Black50.6 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 71x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-741702 O-ring Black71 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 98x7.5 Kalrez-FFKM - 90 Shore A - Black - SES-742201 O-ring Black98 mm  x 7.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40.3x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-581500 O-ring Black40.4 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.17x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-580499 O-ring Black19.18 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 49x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-581724 O-ring Black49 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.8x7 Kalrez-FFKM - 90 Shore A - Black - SES-580841 O-ring Black24.9 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 71.5x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-582182 O-ring Black71.6 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.5x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-581085 O-ring Black29.5 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 104x8 Kalrez-FFKM - 90 Shore A - Black - SES-582622 O-ring Black104 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 36x3.8 Kalrez-FFKM - 90 Shore A - Black - SES-581352 O-ring Black36 mm  x 3.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 137.5x3 Kalrez-FFKM - 90 Shore A - Black - SES-583043 O-ring Black137.6 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45.72x1.07 Kalrez-FFKM - 90 Shore A - Black - SES-581632 O-ring Black45.73 mm  x 1.07 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 177.4x5 Kalrez-FFKM - 90 Shore A - Black - SES-583384 O-ring Black177.5 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 60x5.4 Kalrez-FFKM - 90 Shore A - Black - SES-581970 O-ring Black60 mm  x 5.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 219x5 Kalrez-FFKM - 90 Shore A - Black - SES-583698 O-ring Black219 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 88.49x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-582431 O-ring Black88.50 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 260x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-583953 O-ring Black261 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 123x6 Kalrez-FFKM - 90 Shore A - Black - SES-582885 O-ring Black123 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 293x2.95 Kalrez-FFKM - 90 Shore A - Black - SES-584146 O-ring Black293 mm  x 2.95 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 159x6 Kalrez-FFKM - 90 Shore A - Black - SES-583250 O-ring Black159 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 347x5 Kalrez-FFKM - 90 Shore A - Black - SES-584388 O-ring Black348 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 194x2 Kalrez-FFKM - 90 Shore A - Black - SES-583520 O-ring Black194 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 119.5x3 Kalrez-FFKM - 90 Shore A - Black - SES-546007 O-ring Black119.6 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 142.5x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-546318 O-ring Black142.6 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 165x5 Kalrez-FFKM - 90 Shore A - Black - SES-546574 O-ring Black165 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 223x3 Kalrez-FFKM - 90 Shore A - Black - SES-547013 O-ring Black223 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 268.5x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547306 O-ring Black268.6 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 319x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547629 O-ring Black319 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 367x7 Kalrez-FFKM - 90 Shore A - Black - SES-547860 O-ring Black367 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 441x10 Kalrez-FFKM - 90 Shore A - Black - SES-548140 O-ring Black442 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.84x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-579378 O-ring Black2.84 mm  x 1.78 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.