FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 3x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-739099 O-ring Black3 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 181x6 Kalrez-FFKM - 90 Shore A - Black - SES-743244 O-ring Black181 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 93.26x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-545650 O-ring Black93.27 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-580640 O-ring Black21.6 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 424x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584727 O-ring Black424 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 89.5x7.5 Kalrez-FFKM - 90 Shore A - Black - SES-742058 O-ring Black89.6 mm  x 7.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 305x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-547535 O-ring Black306 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 97x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-582529 O-ring Black97 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.14x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-739783 O-ring Black12.15 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 283x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-743992 O-ring Black284 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 107.63x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-541472 O-ring Black107.64 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 170x6 Kalrez-FFKM - 90 Shore A - Black - SES-546617 O-ring Black170 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44.99x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-581612 O-ring Black44.100 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 269x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-687028 O-ring Black269 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 164.1x8.2 Kalrez-FFKM - 90 Shore A - Black - SES-743065 O-ring Black164.2 mm  x 8.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.7x1 Kalrez-FFKM - 90 Shore A - Black - SES-542919 O-ring Black5.7 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black214.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-581944 O-ring Black59 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.31x0.71 Kalrez-FFKM - 90 Shore A - Black - SES-739192 O-ring Black4.32 mm  x 0.71 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 201x9 Kalrez-FFKM - 90 Shore A - Black - SES-743406 O-ring Black202 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 339x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547728 O-ring Black339 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 110.5x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-582726 O-ring Black110.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.9x2.3 Kalrez-FFKM - 90 Shore A - Black - SES-739990 O-ring Black15.9 mm  x 2.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 310.74x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-744194 O-ring Black310.75 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 499x5 Kalrez-FFKM - 90 Shore A - Black - SES-548308 O-ring Black499 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 159x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-583247 O-ring Black159 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 28.65x1 Kalrez-FFKM - 90 Shore A - Black - SES-740591 O-ring Black28.66 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 385.5x6.5 Kalrez-FFKM - 90 Shore A - Black - SES-744711 O-ring Black385.6 mm  x 6.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black113 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-580905 O-ring Black26 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 504.5x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-584997 O-ring Black504.6 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 106.5x4.8 Kalrez-FFKM - 90 Shore A - Black - SES-742334 O-ring Black106.6 mm  x 4.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.1x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-543223 O-ring Black11.1 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 256x6 Kalrez-FFKM - 90 Shore A - Black - SES-547240 O-ring Black256 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 75x9 Kalrez-FFKM - 90 Shore A - Black - SES-582240 O-ring Black75 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.8x2.45 Kalrez-FFKM - 90 Shore A - Black - SES-739492 O-ring Black7.8 mm  x 2.45 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 243x3.3 Kalrez-FFKM - 90 Shore A - Black - SES-743713 O-ring Black243 mm  x 3.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.9x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-543087 O-ring Black8.9 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 236x7 Kalrez-FFKM - 90 Shore A - Black - SES-547105 O-ring Black237 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 67.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-582106 O-ring Black67.6 mm  x 5 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.