FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 69.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-582149 O-ring Black69.6 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 157x6.5 Kalrez-FFKM - 90 Shore A - Black - SES-583232 O-ring Black157 mm  x 6.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 252x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-583905 O-ring Black253 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 360x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-584444 O-ring Black361 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 525x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-585091 O-ring Black526 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2x3 Kalrez-FFKM - 90 Shore A - Black - SES-738995 O-ring Black2 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.14x1.52 Kalrez-FFKM - 90 Shore A - Black - SES-739581 O-ring Black9.15 mm  x 1.52 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.12x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-541272 O-ring Black9.13 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.6x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-543468 O-ring Black15.6 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35.2x5 Kalrez-FFKM - 90 Shore A - Black - SES-544258 O-ring Black35.3 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 90.77x4 Kalrez-FFKM - 90 Shore A - Black - SES-545610 O-ring Black90.78 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black200 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 351x5 Kalrez-FFKM - 90 Shore A - Black - SES-547792 O-ring Black352 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.2x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-579793 O-ring Black8.2 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26.6x2 Kalrez-FFKM - 90 Shore A - Black - SES-580936 O-ring Black26.7 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 48x10 Kalrez-FFKM - 90 Shore A - Black - SES-581704 O-ring Black48 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 124.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-582902 O-ring Black124.6 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 231x4 Kalrez-FFKM - 90 Shore A - Black - SES-583774 O-ring Black232 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 337x6 Kalrez-FFKM - 90 Shore A - Black - SES-584332 O-ring Black338 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 520x5 Kalrez-FFKM - 90 Shore A - Black - SES-585062 O-ring Black520 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.3x1 Kalrez-FFKM - 90 Shore A - Black - SES-738929 O-ring Black1.3 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.5x4.2 Kalrez-FFKM - 90 Shore A - Black - SES-739607 O-ring Black9.5 mm  x 4.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 23x12.5 Kalrez-FFKM - 90 Shore A - Black - SES-740356 O-ring Black23 mm  x 12.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 43x20 Kalrez-FFKM - 90 Shore A - Black - SES-741084 O-ring Black43 mm  x 20 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 126.67x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-541496 O-ring Black126.68 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.65x2.41 Kalrez-FFKM - 90 Shore A - Black - SES-543590 O-ring Black17.66 mm  x 2.41 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-544541 O-ring Black44 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 126x7 Kalrez-FFKM - 90 Shore A - Black - SES-546112 O-ring Black126 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 253.6x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-547215 O-ring Black253.7 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 491x5 Kalrez-FFKM - 90 Shore A - Black - SES-548295 O-ring Black492 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.7x1 Kalrez-FFKM - 90 Shore A - Black - SES-580652 O-ring Black21.8 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x2.75 Kalrez-FFKM - 90 Shore A - Black - SES-581490 O-ring Black40 mm  x 2.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 97.77x6.1 Kalrez-FFKM - 90 Shore A - Black - SES-582537 O-ring Black97.78 mm  x 6.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 211x3 Kalrez-FFKM - 90 Shore A - Black - SES-583629 O-ring Black212 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 316x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-584241 O-ring Black316 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 478x6 Kalrez-FFKM - 90 Shore A - Black - SES-584913 O-ring Black478 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 71.73x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-687033 O-ring Black71.74 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10x0.8 Kalrez-FFKM - 90 Shore A - Black - SES-739647 O-ring Black10 mm  x 0.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27x8 Kalrez-FFKM - 90 Shore A - Black - SES-740519 O-ring Black27 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.2x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-543117 O-ring Black9.2 mm  x 1.3 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.