FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 43.99x3.99 Kalrez-FFKM - 90 Shore A - Black - SES-544538 O-ring Black43.100 mm  x 3.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.7x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-579581 O-ring Black5.7 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 229.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-583766 O-ring Black229.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 47.6x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-741179 O-ring Black47.7 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 481.99x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-745370 O-ring Black481.100 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-544588 O-ring Black45 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.5x1.19 Kalrez-FFKM - 90 Shore A - Black - SES-579648 O-ring Black6.5 mm  x 1.19 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 239.1x8 Kalrez-FFKM - 90 Shore A - Black - SES-583830 O-ring Black239.2 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 50.16x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-741242 O-ring Black50.17 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 491x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-745434 O-ring Black492 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 31x3 Kalrez-FFKM - 90 Shore A - Black - SES-544116 O-ring Black31 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 210x10 Kalrez-FFKM - 90 Shore A - Black - SES-546934 O-ring Black210 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 62x7 Kalrez-FFKM - 90 Shore A - Black - SES-582008 O-ring Black62 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6x0.95 Kalrez-FFKM - 90 Shore A - Black - SES-739334 O-ring Black6 mm  x 0.95 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 232x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-743631 O-ring Black232 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.18x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-543000 O-ring Black7.19 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 239.1x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-547111 O-ring Black239.2 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 72.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-582190 O-ring Black72.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-739518 O-ring Black8 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 256x8 Kalrez-FFKM - 90 Shore A - Black - SES-743813 O-ring Black256 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 145.42x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-541517 O-ring Black145.43 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 36x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-544275 O-ring Black36 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.08x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-543438 O-ring Black15.09 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 307x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-547545 O-ring Black308 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 104.1x3.18 Kalrez-FFKM - 90 Shore A - Black - SES-582624 O-ring Black104.2 mm  x 3.18 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.49x7.49 Kalrez-FFKM - 90 Shore A - Black - SES-739966 O-ring Black15.50 mm  x 7.49 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 319.46x1.27 Kalrez-FFKM - 90 Shore A - Black - SES-744251 O-ring Black319.47 mm  x 1.27 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33x2 Kalrez-FFKM - 90 Shore A - Black - SES-544182 O-ring Black33 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 489.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-548284 O-ring Black489.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 175.5x3 Kalrez-FFKM - 90 Shore A - Black - SES-583372 O-ring Black175.6 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18x4 Kalrez-FFKM - 90 Shore A - Black - SES-543616 O-ring Black18 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 339x7 Kalrez-FFKM - 90 Shore A - Black - SES-547726 O-ring Black339 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 116x7 Kalrez-FFKM - 90 Shore A - Black - SES-582808 O-ring Black116 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.05x0.89 Kalrez-FFKM - 90 Shore A - Black - SES-740163 O-ring Black19.05 mm  x 0.89 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 345x2 Kalrez-FFKM - 90 Shore A - Black - SES-744437 O-ring Black346 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 106x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-545830 O-ring Black106 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-580911 O-ring Black26 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 524x6 Kalrez-FFKM - 90 Shore A - Black - SES-585083 O-ring Black525 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 116.71x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-742499 O-ring Black116.72 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.4x2.1 Kalrez-FFKM - 90 Shore A - Black - SES-543343 O-ring Black13.5 mm  x 2.1 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.