FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 6.07x4.9 Kalrez-FFKM - 90 Shore A - Black - SES-739357 O-ring Black6.07 mm  x 4.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 224x8 Kalrez-FFKM - 90 Shore A - Black - SES-743580 O-ring Black225 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.5x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-542864 O-ring Black4.5 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 206x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-546899 O-ring Black206 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 57x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-581902 O-ring Black57 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.86x0.91 Kalrez-FFKM - 90 Shore A - Black - SES-739156 O-ring Black3.86 mm  x 0.91 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 197.74x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-743376 O-ring Black197.75 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 49x4 Kalrez-FFKM - 90 Shore A - Black - SES-544704 O-ring Black49 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.1x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-579621 O-ring Black6.1 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 225x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-583734 O-ring Black225 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 43x5.2 Kalrez-FFKM - 90 Shore A - Black - SES-741078 O-ring Black43 mm  x 5.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-543662 O-ring Black19 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black330 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 108x8 Kalrez-FFKM - 90 Shore A - Black - SES-582691 O-ring Black108 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.4x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-739960 O-ring Black15.5 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 307x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-744172 O-ring Black308 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18x1.55 Kalrez-FFKM - 90 Shore A - Black - SES-740104 O-ring Black18 mm  x 1.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 327x10 Kalrez-FFKM - 90 Shore A - Black - SES-744310 O-ring Black328 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 60x5 Kalrez-FFKM - 90 Shore A - Black - SES-545000 O-ring Black60 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.82x1.28 Kalrez-FFKM - 90 Shore A - Black - SES-580002 O-ring Black10.82 mm  x 1.28 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 285x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-584100 O-ring Black285 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59x1.62 Kalrez-FFKM - 90 Shore A - Black - SES-741444 O-ring Black59 mm  x 1.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black117.6 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.5x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-580985 O-ring Black27.5 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 524x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-585085 O-ring Black525 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 113.7x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-742429 O-ring Black113.8 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.92x2.95 Kalrez-FFKM - 90 Shore A - Black - SES-541312 O-ring Black21.93 mm  x 2.95 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158x5 Kalrez-FFKM - 90 Shore A - Black - SES-546483 O-ring Black158 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x2.2 Kalrez-FFKM - 90 Shore A - Black - SES-581488 O-ring Black40 mm  x 2.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 800.1x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-585587 O-ring Black800.2 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 154x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-742961 O-ring Black154 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-580010 O-ring Black11 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 298x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-584176 O-ring Black299 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59.4x3.8 Kalrez-FFKM - 90 Shore A - Black - SES-741458 O-ring Black59.5 mm  x 3.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.6x2.3 Kalrez-FFKM - 90 Shore A - Black - SES-579435 O-ring Black3.6 mm  x 2.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 211x4 Kalrez-FFKM - 90 Shore A - Black - SES-583631 O-ring Black212 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 38.5x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-740916 O-ring Black38.6 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 446x10 Kalrez-FFKM - 90 Shore A - Black - SES-745114 O-ring Black446 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 139x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-546260 O-ring Black139 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-581267 O-ring Black33.9 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.