FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 34x2.16 Kalrez-FFKM - 90 Shore A - Black - SES-767219 O-ring Black34 mm  x 2.16 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 357x3 Kalrez-FFKM - 90 Shore A - Black - SES-770971 O-ring Black358 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black172 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 381x8 Kalrez-FFKM - 90 Shore A - Black - SES-653127 O-ring Black381 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.5x4 Kalrez-FFKM - 90 Shore A - Black - SES-765921 O-ring Black7.5 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black28.76 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 179x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-650665 O-ring Black179 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 456x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-653691 O-ring Black456 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15x4.25 Kalrez-FFKM - 90 Shore A - Black - SES-766391 O-ring Black15 mm  x 4.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 151x6 Kalrez-FFKM - 90 Shore A - Black - SES-769372 O-ring Black151 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.56x3.17 Kalrez-FFKM - 90 Shore A - Black - SES-645359 O-ring Black27.56 mm  x 3.17 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 202.8x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-651041 O-ring Black202.9 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 499.5x7 Kalrez-FFKM - 90 Shore A - Black - SES-653959 O-ring Black499.6 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20.96x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-766698 O-ring Black20.96 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 275x14 Kalrez-FFKM - 90 Shore A - Black - SES-770390 O-ring Black276 mm  x 14 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black17.06 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black141 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black54 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 475x7 Kalrez-FFKM - 90 Shore A - Black - SES-653813 O-ring Black476 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.43x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-766863 O-ring Black24.44 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 429.5x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-771456 O-ring Black429.6 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 259.08x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-651835 O-ring Black259.09 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 578x6 Kalrez-FFKM - 90 Shore A - Black - SES-654340 O-ring Black579 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44.8x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-767568 O-ring Black44.9 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.9x1.45 Kalrez-FFKM - 90 Shore A - Black - SES-643105 O-ring Black7.9 mm  x 1.45 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 85.62x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-648398 O-ring Black85.63 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 422x4 Kalrez-FFKM - 90 Shore A - Black - SES-653454 O-ring Black423 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.9x3.6 Kalrez-FFKM - 90 Shore A - Black - SES-766886 O-ring Black24.10 mm  x 3.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 51.2x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-646968 O-ring Black51.2 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 267x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-651936 O-ring Black268 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.65x1.07 Kalrez-FFKM - 90 Shore A - Black - SES-765935 O-ring Black7.65 mm  x 1.07 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 143.7x4 Kalrez-FFKM - 90 Shore A - Black - SES-769288 O-ring Black143.8 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53.67x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-647098 O-ring Black53.68 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 360x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-652932 O-ring Black361 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.3x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-766625 O-ring Black19.3 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 23.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-644959 O-ring Black23.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 273x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-652007 O-ring Black274 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.76x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-766209 O-ring Black11.77 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 51.3x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-646971 O-ring Black51.4 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 422x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-653453 O-ring Black423 mm  x 3.5 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.