FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 349x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584399 O-ring Black349 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 432.2x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-584762 O-ring Black432.3 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 592x10 Kalrez-FFKM - 90 Shore A - Black - SES-585342 O-ring Black593 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.75x0.61 Kalrez-FFKM - 90 Shore A - Black - SES-738966 O-ring Black1.75 mm  x 0.61 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.7x0.6 Kalrez-FFKM - 90 Shore A - Black - SES-739307 O-ring Black5.7 mm  x 0.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.3x0.75 Kalrez-FFKM - 90 Shore A - Black - SES-739666 O-ring Black10.3 mm  x 0.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20x5.5 Kalrez-FFKM - 90 Shore A - Black - SES-740218 O-ring Black20 mm  x 5.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.08x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-740870 O-ring Black37.09 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 49.7x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-741224 O-ring Black49.8 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 81.7x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-741914 O-ring Black81.8 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 120.5x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-742561 O-ring Black120.6 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 165x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-743070 O-ring Black165 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 215x20 Kalrez-FFKM - 90 Shore A - Black - SES-743519 O-ring Black215 mm  x 20 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 256x7 Kalrez-FFKM - 90 Shore A - Black - SES-743811 O-ring Black256 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 292x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-744048 O-ring Black292 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 353x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-744489 O-ring Black353 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 191x8 Kalrez-FFKM - 90 Shore A - Black - SES-743327 O-ring Black192 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 250x18 Kalrez-FFKM - 90 Shore A - Black - SES-743770 O-ring Black250 mm  x 18 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 282x14 Kalrez-FFKM - 90 Shore A - Black - SES-743989 O-ring Black283 mm  x 14 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 325x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-744297 O-ring Black325 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 411x9 Kalrez-FFKM - 90 Shore A - Black - SES-744885 O-ring Black412 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 493x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-745449 O-ring Black494 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.6x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-542782 O-ring Black2.6 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.1x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-543328 O-ring Black13.2 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22.4x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-543818 O-ring Black22.5 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.69x2.38 Kalrez-FFKM - 90 Shore A - Black - SES-544404 O-ring Black39.70 mm  x 2.38 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 56x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-544910 O-ring Black56 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 92x7 Kalrez-FFKM - 90 Shore A - Black - SES-545632 O-ring Black92 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 150x3 Kalrez-FFKM - 90 Shore A - Black - SES-546417 O-ring Black150 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 228x5 Kalrez-FFKM - 90 Shore A - Black - SES-547044 O-ring Black228 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 319.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-547634 O-ring Black319.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 439x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-548121 O-ring Black439 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.7x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-579748 O-ring Black7.7 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.81x0.61 Kalrez-FFKM - 90 Shore A - Black - SES-579458 O-ring Black3.81 mm  x 0.61 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 43.8x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-544533 O-ring Black43.9 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.2x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-580119 O-ring Black12.3 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74.63x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-545311 O-ring Black74.64 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 25.4x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-580869 O-ring Black25.4 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black128 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 38.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-581457 O-ring Black38.9 mm  x 3.1 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.