FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 185x4 Kalrez-FFKM - 90 Shore A - Black - SES-650770 O-ring Black185 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 216x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-651251 O-ring Black216 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 250x10 Kalrez-FFKM - 90 Shore A - Black - SES-651721 O-ring Black250 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 296x5 Kalrez-FFKM - 90 Shore A - Black - SES-652276 O-ring Black297 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 353.7x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-652863 O-ring Black353.8 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 408x4 Kalrez-FFKM - 90 Shore A - Black - SES-653339 O-ring Black408 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 461x4 Kalrez-FFKM - 90 Shore A - Black - SES-653724 O-ring Black461 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 531x5 Kalrez-FFKM - 90 Shore A - Black - SES-654152 O-ring Black532 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 658x5.34 Kalrez-FFKM - 90 Shore A - Black - SES-654572 O-ring Black658 mm  x 5.34 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.51x0.35 Kalrez-FFKM - 90 Shore A - Black - SES-765498 O-ring Black2.51 mm  x 0.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.86x1.63 Kalrez-FFKM - 90 Shore A - Black - SES-766091 O-ring Black9.87 mm  x 1.63 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16.6x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-766487 O-ring Black16.6 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 23.5x2.3 Kalrez-FFKM - 90 Shore A - Black - SES-766825 O-ring Black23.6 mm  x 2.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 34.8x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-767243 O-ring Black34.9 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55x7.5 Kalrez-FFKM - 90 Shore A - Black - SES-767799 O-ring Black55 mm  x 7.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 105.4x3.8 Kalrez-FFKM - 90 Shore A - Black - SES-768764 O-ring Black105.5 mm  x 3.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black207.30 mm  x 8.11 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 400x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-771244 O-ring Black401 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 34.65x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-645927 O-ring Black34.66 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-646549 O-ring Black44 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 58x6 Kalrez-FFKM - 90 Shore A - Black - SES-647322 O-ring Black58 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black81 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 112x3 Kalrez-FFKM - 90 Shore A - Black - SES-649176 O-ring Black113 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 144x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-649999 O-ring Black144 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 174.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-650592 O-ring Black174.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 212x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-651187 O-ring Black212 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 248x4 Kalrez-FFKM - 90 Shore A - Black - SES-651681 O-ring Black249 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 291x6 Kalrez-FFKM - 90 Shore A - Black - SES-652217 O-ring Black291 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 353x5 Kalrez-FFKM - 90 Shore A - Black - SES-652860 O-ring Black353 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 409x10 Kalrez-FFKM - 90 Shore A - Black - SES-653349 O-ring Black409 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 469x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-653770 O-ring Black470 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 554x5 Kalrez-FFKM - 90 Shore A - Black - SES-654248 O-ring Black555 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 747x10 Kalrez-FFKM - 90 Shore A - Black - SES-654673 O-ring Black748 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6x0.75 Kalrez-FFKM - 90 Shore A - Black - SES-765783 O-ring Black6 mm  x 0.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-766228 O-ring Black12 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20x0.5 Kalrez-FFKM - 90 Shore A - Black - SES-766657 O-ring Black20 mm  x 0.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 28x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-767007 O-ring Black28 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black42 mm  x 11.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 77.5x1.4 Kalrez-FFKM - 90 Shore A - Black - SES-768271 O-ring Black77.6 mm  x 1.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158.75x2.36 Kalrez-FFKM - 90 Shore A - Black - SES-769454 O-ring Black158.76 mm  x 2.36 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 N9EX 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 N9EX certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.