FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 251.14x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-651734 O-ring Black251.15 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15x10 Kalrez-FFKM - 90 Shore A - Black - SES-766396 O-ring Black15 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 285.35x9.53 Kalrez-FFKM - 90 Shore A - Black - SES-770469 O-ring Black285.36 mm  x 9.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black12.54 mm  x 1.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black74.5 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 284.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-652131 O-ring Black284.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22.8x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-766790 O-ring Black22.9 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black344 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22.3x2.48 Kalrez-FFKM - 90 Shore A - Black - SES-644852 O-ring Black22.4 mm  x 2.48 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 109.4x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-649095 O-ring Black109.5 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 393x4 Kalrez-FFKM - 90 Shore A - Black - SES-653225 O-ring Black393 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 58.7x6.3 Kalrez-FFKM - 90 Shore A - Black - SES-767885 O-ring Black58.8 mm  x 6.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.52x2 Kalrez-FFKM - 90 Shore A - Black - SES-643878 O-ring Black13.53 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 78x4.26 Kalrez-FFKM - 90 Shore A - Black - SES-648122 O-ring Black78 mm  x 4.26 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 295x3 Kalrez-FFKM - 90 Shore A - Black - SES-652261 O-ring Black296 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 25.8x6.9 Kalrez-FFKM - 90 Shore A - Black - SES-766923 O-ring Black25.9 mm  x 6.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 365.1x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-771024 O-ring Black365.2 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 115x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-768926 O-ring Black115 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.99x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-644026 O-ring Black14.100 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-643887 O-ring Black13.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16x2 Kalrez-FFKM - 90 Shore A - Black - SES-644169 O-ring Black16 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 86.5x2.24 Kalrez-FFKM - 90 Shore A - Black - SES-648419 O-ring Black86.6 mm  x 2.24 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 321x7 Kalrez-FFKM - 90 Shore A - Black - SES-652557 O-ring Black322 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 34x2.1 Kalrez-FFKM - 90 Shore A - Black - SES-767218 O-ring Black34 mm  x 2.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black409 mm  x 19 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black2.79 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45x5 Kalrez-FFKM - 90 Shore A - Black - SES-646617 O-ring Black45 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 190x6.3 Kalrez-FFKM - 90 Shore A - Black - SES-650861 O-ring Black190 mm  x 6.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.21x2.06 Kalrez-FFKM - 90 Shore A - Black - SES-765465 O-ring Black2.21 mm  x 2.06 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black174 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 96x4 Kalrez-FFKM - 90 Shore A - Black - SES-648716 O-ring Black96 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 352x4 Kalrez-FFKM - 90 Shore A - Black - SES-652853 O-ring Black353 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 42.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-767516 O-ring Black42.6 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 456x10 Kalrez-FFKM - 90 Shore A - Black - SES-771623 O-ring Black456 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.78x1.91 Kalrez-FFKM - 90 Shore A - Black - SES-644352 O-ring Black17.79 mm  x 1.91 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 92x6 Kalrez-FFKM - 90 Shore A - Black - SES-648600 O-ring Black92 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 341x4 Kalrez-FFKM - 90 Shore A - Black - SES-652739 O-ring Black342 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.6x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-767404 O-ring Black39.7 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 438x10 Kalrez-FFKM - 90 Shore A - Black - SES-771512 O-ring Black438 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 43.82x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-646535 O-ring Black43.83 mm  x 5.33 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.