FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 48x4.2 Kalrez-FFKM - 90 Shore A - Black - SES-741189 O-ring Black48 mm  x 4.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 72.5x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-741723 O-ring Black72.6 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 253x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-547206 O-ring Black253 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 334.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-547706 O-ring Black334.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 430.21x4.76 Kalrez-FFKM - 90 Shore A - Black - SES-745015 O-ring Black430.22 mm  x 4.76 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 437x3 Kalrez-FFKM - 90 Shore A - Black - SES-745051 O-ring Black438 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 110.5x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-545890 O-ring Black110.6 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 438x5 Kalrez-FFKM - 90 Shore A - Black - SES-745058 O-ring Black438 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 269x4 Kalrez-FFKM - 90 Shore A - Black - SES-584014 O-ring Black269 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 449.2x6.3 Kalrez-FFKM - 90 Shore A - Black - SES-745127 O-ring Black449.3 mm  x 6.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.3x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-579329 O-ring Black2.3 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 460x9 Kalrez-FFKM - 90 Shore A - Black - SES-745213 O-ring Black461 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.03x1.88 Kalrez-FFKM - 90 Shore A - Black - SES-739348 O-ring Black6.04 mm  x 1.88 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18.92x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-580488 O-ring Black18.93 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 116.4x3.17 Kalrez-FFKM - 90 Shore A - Black - SES-742496 O-ring Black116.5 mm  x 3.17 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 25.02x4.11 Kalrez-FFKM - 90 Shore A - Black - SES-580854 O-ring Black25.03 mm  x 4.11 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 368x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-584487 O-ring Black368 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 303x5 Kalrez-FFKM - 90 Shore A - Black - SES-584197 O-ring Black304 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 194.3x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-583524 O-ring Black194.4 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.5x0.8 Kalrez-FFKM - 90 Shore A - Black - SES-739601 O-ring Black9.5 mm  x 0.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53.09x3 Kalrez-FFKM - 90 Shore A - Black - SES-541386 O-ring Black53.10 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 339x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-584340 O-ring Black339 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 128x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-582936 O-ring Black128 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 237x5.6 Kalrez-FFKM - 90 Shore A - Black - SES-583812 O-ring Black237 mm  x 5.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 28.4x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-740576 O-ring Black28.5 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.3x1 Kalrez-FFKM - 90 Shore A - Black - SES-740937 O-ring Black39.4 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-542917 O-ring Black5.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8x1.25 Kalrez-FFKM - 90 Shore A - Black - SES-543039 O-ring Black8 mm  x 1.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26.6x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-543974 O-ring Black26.7 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.4x3 Kalrez-FFKM - 90 Shore A - Black - SES-544001 O-ring Black27.5 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53x4 Kalrez-FFKM - 90 Shore A - Black - SES-544815 O-ring Black53 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 54.5x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-544862 O-ring Black54.6 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 190x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-546768 O-ring Black190 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.7x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-579582 O-ring Black5.7 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22.23x7.95 Kalrez-FFKM - 90 Shore A - Black - SES-580684 O-ring Black22.24 mm  x 7.95 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.1x1 Kalrez-FFKM - 90 Shore A - Black - SES-581391 O-ring Black37.2 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-581487 O-ring Black40 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.2x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-582051 O-ring Black64.3 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 110x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-582711 O-ring Black110 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 345.57x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-584380 O-ring Black345.58 mm  x 3.53 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.