FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 322x7 Kalrez-FFKM - 90 Shore A - Black - SES-547653 O-ring Black323 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 113x2.3 Kalrez-FFKM - 90 Shore A - Black - SES-582763 O-ring Black113 mm  x 2.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19x0.8 Kalrez-FFKM - 90 Shore A - Black - SES-740146 O-ring Black19 mm  x 0.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 346x9.5 Kalrez-FFKM - 90 Shore A - Black - SES-744450 O-ring Black347 mm  x 9.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 50.8x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-581766 O-ring Black50.9 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.4x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-739200 O-ring Black4.4 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 206.86x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-743453 O-ring Black206.87 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53.17x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-581818 O-ring Black53.18 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x1.19 Kalrez-FFKM - 90 Shore A - Black - SES-739251 O-ring Black5 mm  x 1.19 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 213x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-743506 O-ring Black213 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-544244 O-ring Black35 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 79.63x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-548445 O-ring Black79.64 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 192x7 Kalrez-FFKM - 90 Shore A - Black - SES-583502 O-ring Black192 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.6x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-740952 O-ring Black39.7 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 457x6.35 Kalrez-FFKM - 90 Shore A - Black - SES-745179 O-ring Black458 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.5x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-543353 O-ring Black13.5 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 300x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-547496 O-ring Black300 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 103.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-582613 O-ring Black103.9 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.9x2.54 Kalrez-FFKM - 90 Shore A - Black - SES-739991 O-ring Black15.9 mm  x 2.54 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 327x6.3 Kalrez-FFKM - 90 Shore A - Black - SES-744307 O-ring Black328 mm  x 6.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 126.4x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-546113 O-ring Black126.5 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-543211 O-ring Black11 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 289.5x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547426 O-ring Black289.6 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26.5x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-543972 O-ring Black26.6 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 436x5 Kalrez-FFKM - 90 Shore A - Black - SES-548116 O-ring Black437 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 157x6.55 Kalrez-FFKM - 90 Shore A - Black - SES-583233 O-ring Black157 mm  x 6.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.9x2.3 Kalrez-FFKM - 90 Shore A - Black - SES-740625 O-ring Black29.10 mm  x 2.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 415x15 Kalrez-FFKM - 90 Shore A - Black - SES-744919 O-ring Black415 mm  x 15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 150x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-546419 O-ring Black150 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45x8 Kalrez-FFKM - 90 Shore A - Black - SES-544592 O-ring Black45 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.1x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-579699 O-ring Black7.1 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 253.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-583915 O-ring Black253.9 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55.7x4.6 Kalrez-FFKM - 90 Shore A - Black - SES-741362 O-ring Black55.8 mm  x 4.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.77x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-543199 O-ring Black10.78 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 289x7 Kalrez-FFKM - 90 Shore A - Black - SES-547420 O-ring Black289 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 92x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-582471 O-ring Black92 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.8x2.2 Kalrez-FFKM - 90 Shore A - Black - SES-739921 O-ring Black14.8 mm  x 2.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 307x6 Kalrez-FFKM - 90 Shore A - Black - SES-744171 O-ring Black308 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 54x4 Kalrez-FFKM - 90 Shore A - Black - SES-544848 O-ring Black54 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.4x1.4 Kalrez-FFKM - 90 Shore A - Black - SES-579967 O-ring Black10.5 mm  x 1.4 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.