FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 343x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584363 O-ring Black344 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 396x5 Kalrez-FFKM - 90 Shore A - Black - SES-584605 O-ring Black397 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 501x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-584974 O-ring Black502 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 612x3 Kalrez-FFKM - 90 Shore A - Black - SES-585390 O-ring Black613 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 908x8 Kalrez-FFKM - 90 Shore A - Black - SES-585653 O-ring Black909 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.25x0.63 Kalrez-FFKM - 90 Shore A - Black - SES-739113 O-ring Black3.25 mm  x 0.63 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.7x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-739401 O-ring Black6.7 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 486x7 Kalrez-FFKM - 90 Shore A - Black - SES-584940 O-ring Black486 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 599x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-585365 O-ring Black600 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 929x10 Kalrez-FFKM - 90 Shore A - Black - SES-585665 O-ring Black930 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.1x1.7 Kalrez-FFKM - 90 Shore A - Black - SES-739178 O-ring Black4.1 mm  x 1.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.9x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-739415 O-ring Black6.9 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.6x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-739808 O-ring Black12.6 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18.2x3.4 Kalrez-FFKM - 90 Shore A - Black - SES-740119 O-ring Black18.3 mm  x 3.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32.2x0.8 Kalrez-FFKM - 90 Shore A - Black - SES-740719 O-ring Black32.3 mm  x 0.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40.5x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-740983 O-ring Black40.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55.7x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-741361 O-ring Black55.8 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 115x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-742476 O-ring Black115 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 140x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-742789 O-ring Black141 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 170x15 Kalrez-FFKM - 90 Shore A - Black - SES-743127 O-ring Black170 mm  x 15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.18x2.46 Kalrez-FFKM - 90 Shore A - Black - SES-541304 O-ring Black19.19 mm  x 2.46 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-542883 O-ring Black5 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.82x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-543145 O-ring Black9.83 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-543492 O-ring Black16 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20.02x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-543725 O-ring Black20.03 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29x6 Kalrez-FFKM - 90 Shore A - Black - SES-544053 O-ring Black29 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.5x7 Kalrez-FFKM - 90 Shore A - Black - SES-544341 O-ring Black37.6 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 46.2x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-544626 O-ring Black46.3 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 61x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-545022 O-ring Black61 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 85x5 Kalrez-FFKM - 90 Shore A - Black - SES-545506 O-ring Black85 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 113.97x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-545926 O-ring Black113.98 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 148x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-546378 O-ring Black148 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 658.88x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-541641 O-ring Black658.89 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.19x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-543116 O-ring Black9.20 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.99x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-543418 O-ring Black14.100 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.51x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-543693 O-ring Black19.52 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-544044 O-ring Black29 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.86x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-544351 O-ring Black37.87 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 48x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-544673 O-ring Black48 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.9x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-545110 O-ring Black64.10 mm  x 2.6 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.