FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 965x7 Kalrez-FFKM - 90 Shore A - Black - SES-585674 O-ring Black966 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 176x2 Kalrez-FFKM - 90 Shore A - Black - SES-743179 O-ring Black176 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 140.5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-546300 O-ring Black140.6 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 38.2x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-581440 O-ring Black38.3 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 946.07x10.82 Kalrez-FFKM - 90 Shore A - Black - SES-585670 O-ring Black946.08 mm  x 10.82 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 175x13 Kalrez-FFKM - 90 Shore A - Black - SES-743176 O-ring Black175 mm  x 13 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 575x6 Kalrez-FFKM - 90 Shore A - Black - SES-585270 O-ring Black576 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 137x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-742750 O-ring Black137 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.48x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-543062 O-ring Black8.48 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 135x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-546223 O-ring Black135 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 36.2x2.8 Kalrez-FFKM - 90 Shore A - Black - SES-581363 O-ring Black36.3 mm  x 2.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 810x10 Kalrez-FFKM - 90 Shore A - Black - SES-585594 O-ring Black811 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 168.3x15 Kalrez-FFKM - 90 Shore A - Black - SES-743103 O-ring Black168.4 mm  x 15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 80x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-545403 O-ring Black80 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.8x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-580543 O-ring Black19.8 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 151.64x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-546429 O-ring Black151.65 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 43x4.9 Kalrez-FFKM - 90 Shore A - Black - SES-581574 O-ring Black43 mm  x 4.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.7x0.94 Kalrez-FFKM - 90 Shore A - Black - SES-738963 O-ring Black1.7 mm  x 0.94 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 190x9 Kalrez-FFKM - 90 Shore A - Black - SES-743314 O-ring Black190 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 85x2 Kalrez-FFKM - 90 Shore A - Black - SES-545498 O-ring Black85 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.5x5.4 Kalrez-FFKM - 90 Shore A - Black - SES-580643 O-ring Black21.6 mm  x 5.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 110x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-545879 O-ring Black110 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 28.3x3.08 Kalrez-FFKM - 90 Shore A - Black - SES-581028 O-ring Black28.4 mm  x 3.08 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 571x5 Kalrez-FFKM - 90 Shore A - Black - SES-585257 O-ring Black571 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 135.26x4.45 Kalrez-FFKM - 90 Shore A - Black - SES-742740 O-ring Black135.27 mm  x 4.45 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 72.39x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-541424 O-ring Black72.40 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 185x4 Kalrez-FFKM - 90 Shore A - Black - SES-546735 O-ring Black185 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 56.5x1 Kalrez-FFKM - 90 Shore A - Black - SES-581886 O-ring Black56.6 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.3x1.95 Kalrez-FFKM - 90 Shore A - Black - SES-739277 O-ring Black5.3 mm  x 1.95 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 232x10 Kalrez-FFKM - 90 Shore A - Black - SES-743634 O-ring Black232 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 93x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-545644 O-ring Black93 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.2x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-580793 O-ring Black24.3 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 124.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-546079 O-ring Black124.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32.8x4.6 Kalrez-FFKM - 90 Shore A - Black - SES-581228 O-ring Black32.9 mm  x 4.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 667x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-585462 O-ring Black668 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 155x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-742966 O-ring Black155 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.7x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-543900 O-ring Black24.8 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 421x10 Kalrez-FFKM - 90 Shore A - Black - SES-548080 O-ring Black422 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 157x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-583230 O-ring Black157 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 30.5x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-740651 O-ring Black30.6 mm  x 2.9 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.