FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 350x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-547781 O-ring Black351 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 431x8 Kalrez-FFKM - 90 Shore A - Black - SES-548111 O-ring Black431 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-542939 O-ring Black6 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-543219 O-ring Black11 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 309x10 Kalrez-FFKM - 90 Shore A - Black - SES-547558 O-ring Black310 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 375x3 Kalrez-FFKM - 90 Shore A - Black - SES-547893 O-ring Black376 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 490x6 Kalrez-FFKM - 90 Shore A - Black - SES-548290 O-ring Black491 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 203x6.35 Kalrez-FFKM - 90 Shore A - Black - SES-743424 O-ring Black204 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 232x7 Kalrez-FFKM - 90 Shore A - Black - SES-743629 O-ring Black232 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 260x11 Kalrez-FFKM - 90 Shore A - Black - SES-743834 O-ring Black261 mm  x 11 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 280x12 Kalrez-FFKM - 90 Shore A - Black - SES-743978 O-ring Black281 mm  x 12 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 298x3 Kalrez-FFKM - 90 Shore A - Black - SES-744099 O-ring Black299 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 324x10 Kalrez-FFKM - 90 Shore A - Black - SES-744287 O-ring Black324 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 380x9 Kalrez-FFKM - 90 Shore A - Black - SES-744673 O-ring Black380 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 415x20 Kalrez-FFKM - 90 Shore A - Black - SES-744920 O-ring Black415 mm  x 20 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 458x9 Kalrez-FFKM - 90 Shore A - Black - SES-745195 O-ring Black459 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 493x8 Kalrez-FFKM - 90 Shore A - Black - SES-745452 O-ring Black494 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 198x17 Kalrez-FFKM - 90 Shore A - Black - SES-743384 O-ring Black198 mm  x 17 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 230x20 Kalrez-FFKM - 90 Shore A - Black - SES-743623 O-ring Black231 mm  x 20 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 262x5.5 Kalrez-FFKM - 90 Shore A - Black - SES-743845 O-ring Black262 mm  x 5.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 282x10 Kalrez-FFKM - 90 Shore A - Black - SES-743988 O-ring Black283 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 299x3.18 Kalrez-FFKM - 90 Shore A - Black - SES-744107 O-ring Black299 mm  x 3.18 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 332x6 Kalrez-FFKM - 90 Shore A - Black - SES-744354 O-ring Black333 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 390x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-744733 O-ring Black391 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 435x11 Kalrez-FFKM - 90 Shore A - Black - SES-745043 O-ring Black436 mm  x 11 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 470x6.5 Kalrez-FFKM - 90 Shore A - Black - SES-745291 O-ring Black471 mm  x 6.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 327x6 Kalrez-FFKM - 90 Shore A - Black - SES-584300 O-ring Black328 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 375x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-584518 O-ring Black376 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 455x4 Kalrez-FFKM - 90 Shore A - Black - SES-584841 O-ring Black456 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 571.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-585259 O-ring Black571.6 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 722x3 Kalrez-FFKM - 90 Shore A - Black - SES-585523 O-ring Black723 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2x0.7 Kalrez-FFKM - 90 Shore A - Black - SES-738989 O-ring Black2 mm  x 0.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.47x1.96 Kalrez-FFKM - 90 Shore A - Black - SES-739206 O-ring Black4.47 mm  x 1.96 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.5x1.17 Kalrez-FFKM - 90 Shore A - Black - SES-739463 O-ring Black7.5 mm  x 1.17 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.4x2.8 Kalrez-FFKM - 90 Shore A - Black - SES-739845 O-ring Black13.5 mm  x 2.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19x0.6 Kalrez-FFKM - 90 Shore A - Black - SES-740144 O-ring Black19 mm  x 0.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32x1.07 Kalrez-FFKM - 90 Shore A - Black - SES-740702 O-ring Black32 mm  x 1.07 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-740960 O-ring Black40 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 51x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-741267 O-ring Black51 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 270x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-584019 O-ring Black270 mm  x 2.62 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.