FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 59.5x4.25 Kalrez-FFKM - 90 Shore A - Black - SES-741464 O-ring Black59.6 mm  x 4.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.4x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-543344 O-ring Black13.5 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 295x8 Kalrez-FFKM - 90 Shore A - Black - SES-547465 O-ring Black296 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 99.1x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-582557 O-ring Black99.2 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.63x0.86 Kalrez-FFKM - 90 Shore A - Black - SES-739914 O-ring Black14.64 mm  x 0.86 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 313x10 Kalrez-FFKM - 90 Shore A - Black - SES-744210 O-ring Black313 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.6x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-543021 O-ring Black7.6 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 254x4 Kalrez-FFKM - 90 Shore A - Black - SES-547221 O-ring Black254 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 76x6 Kalrez-FFKM - 90 Shore A - Black - SES-582248 O-ring Black76 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.16x0.76 Kalrez-FFKM - 90 Shore A - Black - SES-739661 O-ring Black10.16 mm  x 0.76 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 270x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-743898 O-ring Black270 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 34.6x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-544235 O-ring Black34.7 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 633.48x5.34 Kalrez-FFKM - 90 Shore A - Black - SES-548417 O-ring Black633.49 mm  x 5.34 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 187x3 Kalrez-FFKM - 90 Shore A - Black - SES-583454 O-ring Black187 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.9x2.75 Kalrez-FFKM - 90 Shore A - Black - SES-740886 O-ring Black37.10 mm  x 2.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45x6 Kalrez-FFKM - 90 Shore A - Black - SES-544590 O-ring Black45 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.73x2.01 Kalrez-FFKM - 90 Shore A - Black - SES-579670 O-ring Black6.73 mm  x 2.01 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 246x2 Kalrez-FFKM - 90 Shore A - Black - SES-583870 O-ring Black246 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 52x10 Kalrez-FFKM - 90 Shore A - Black - SES-741299 O-ring Black52 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 301x9 Kalrez-FFKM - 90 Shore A - Black - SES-744126 O-ring Black302 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-543243 O-ring Black11.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 290x10 Kalrez-FFKM - 90 Shore A - Black - SES-547436 O-ring Black291 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 90.5x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-582464 O-ring Black90.6 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 301.5x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-744127 O-ring Black301.6 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.52x1.83 Kalrez-FFKM - 90 Shore A - Black - SES-579286 O-ring Black1.52 mm  x 1.83 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 203.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-583578 O-ring Black203.9 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 324x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-744283 O-ring Black324 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-543377 O-ring Black14 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 310x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547572 O-ring Black310 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 103.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-582603 O-ring Black103.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16.65x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-740036 O-ring Black16.66 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 322x3.8 Kalrez-FFKM - 90 Shore A - Black - SES-744267 O-ring Black323 mm  x 3.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 104.14x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-541466 O-ring Black104.15 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 194x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-546793 O-ring Black194 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53.5x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-581824 O-ring Black53.6 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.95x0.64 Kalrez-FFKM - 90 Shore A - Black - SES-739244 O-ring Black4.95 mm  x 0.64 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 210x12 Kalrez-FFKM - 90 Shore A - Black - SES-743487 O-ring Black210 mm  x 12 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18.1x2.02 Kalrez-FFKM - 90 Shore A - Black - SES-543623 O-ring Black18.2 mm  x 2.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 359x4 Kalrez-FFKM - 90 Shore A - Black - SES-547823 O-ring Black359 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 120.82x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-582857 O-ring Black120.83 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.