FFKM O-rings EN9EX

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 109.52x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-649101 O-ring Black109.53 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 395x4 Kalrez-FFKM - 90 Shore A - Black - SES-653246 O-ring Black396 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black59.99 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.6x1.14 Kalrez-FFKM - 90 Shore A - Black - SES-644772 O-ring Black21.7 mm  x 1.14 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 107.01x2.01 Kalrez-FFKM - 90 Shore A - Black - SES-649034 O-ring Black107.02 mm  x 2.01 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 388x10 Kalrez-FFKM - 90 Shore A - Black - SES-653181 O-ring Black389 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 57.3x5.2 Kalrez-FFKM - 90 Shore A - Black - SES-767856 O-ring Black57.4 mm  x 5.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.6x2 Kalrez-FFKM - 90 Shore A - Black - SES-643884 O-ring Black13.7 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 79x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-648146 O-ring Black79 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 299x6 Kalrez-FFKM - 90 Shore A - Black - SES-652302 O-ring Black299 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.4x0.9 Kalrez-FFKM - 90 Shore A - Black - SES-766980 O-ring Black27.5 mm  x 0.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black378 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-642614 O-ring Black4 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 48x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-646791 O-ring Black48 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 203x4 Kalrez-FFKM - 90 Shore A - Black - SES-651046 O-ring Black204 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.5x1.45 Kalrez-FFKM - 90 Shore A - Black - SES-765665 O-ring Black4.5 mm  x 1.45 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33.5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-645838 O-ring Black33.6 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 148.52x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-650103 O-ring Black148.53 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black33.06 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 144.27x4.06 Kalrez-FFKM - 90 Shore A - Black - SES-650009 O-ring Black144.28 mm  x 4.06 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 546x5 Kalrez-FFKM - 90 Shore A - Black - SES-654224 O-ring Black546 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 110x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-768836 O-ring Black110 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33x1 Kalrez-FFKM - 90 Shore A - Black - SES-645788 O-ring Black33 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 145.72x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-650053 O-ring Black145.73 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.5x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-646279 O-ring Black39.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 167x5 Kalrez-FFKM - 90 Shore A - Black - SES-650476 O-ring Black167 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 682x10 Kalrez-FFKM - 90 Shore A - Black - SES-654620 O-ring Black683 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 142x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-769267 O-ring Black142 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10x2 Kalrez-FFKM - 90 Shore A - Black - SES-643413 O-ring Black10 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.4x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-647607 O-ring Black64.5 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 260x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-651848 O-ring Black261 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16.25x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-766467 O-ring Black16.25 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 309x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-770631 O-ring Black310 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 42.5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-646466 O-ring Black42.6 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 179x5 Kalrez-FFKM - 90 Shore A - Black - SES-650669 O-ring Black179 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.3x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-686964 O-ring Black5.3 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 159x10 Kalrez-FFKM - 90 Shore A - Black - SES-769463 O-ring Black159 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.2x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-643157 O-ring Black8.2 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59x1 Kalrez-FFKM - 90 Shore A - Black - SES-647345 O-ring Black59 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 237x4 Kalrez-FFKM - 90 Shore A - Black - SES-651535 O-ring Black237 mm  x 4 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.