FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 466x10 Kalrez-FFKM - 90 Shore A - Black - SES-745259 O-ring Black467 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-544560 O-ring Black44.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.6x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-545103 O-ring Black64.7 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 91x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-545613 O-ring Black91 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 135x2 Kalrez-FFKM - 90 Shore A - Black - SES-546224 O-ring Black135 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 164x4 Kalrez-FFKM - 90 Shore A - Black - SES-546546 O-ring Black164 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 239.1x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547112 O-ring Black239.2 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 309x4 Kalrez-FFKM - 90 Shore A - Black - SES-547553 O-ring Black310 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 388x10 Kalrez-FFKM - 90 Shore A - Black - SES-547954 O-ring Black389 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.3x1.7 Kalrez-FFKM - 90 Shore A - Black - SES-579330 O-ring Black2.3 mm  x 1.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.6x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-579922 O-ring Black9.6 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-580518 O-ring Black19.5 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.5x1.7 Kalrez-FFKM - 90 Shore A - Black - SES-580978 O-ring Black27.5 mm  x 1.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-542836 O-ring Black4 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 38x7.1 Kalrez-FFKM - 90 Shore A - Black - SES-581435 O-ring Black38 mm  x 7.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.1x1 Kalrez-FFKM - 90 Shore A - Black - SES-543166 O-ring Black10.2 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17x3.56 Kalrez-FFKM - 90 Shore A - Black - SES-543550 O-ring Black17 mm  x 3.56 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-543895 O-ring Black24.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 54x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-581839 O-ring Black54 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 87x6 Kalrez-FFKM - 90 Shore A - Black - SES-582417 O-ring Black87 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 137x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-583037 O-ring Black137 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 365x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-547855 O-ring Black365 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 506.86x7 Kalrez-FFKM - 90 Shore A - Black - SES-548335 O-ring Black506.87 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-579850 O-ring Black9 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.2x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-580503 O-ring Black19.3 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.8x2 Kalrez-FFKM - 90 Shore A - Black - SES-580999 O-ring Black27.9 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.12x2.59 Kalrez-FFKM - 90 Shore A - Black - SES-581469 O-ring Black39.13 mm  x 2.59 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 57.53x2.08 Kalrez-FFKM - 90 Shore A - Black - SES-581914 O-ring Black57.54 mm  x 2.08 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 105x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-582638 O-ring Black105 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 159.6x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-583254 O-ring Black159.7 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 223x4 Kalrez-FFKM - 90 Shore A - Black - SES-583722 O-ring Black223 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 265x3.75 Kalrez-FFKM - 90 Shore A - Black - SES-583989 O-ring Black266 mm  x 3.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 348x4 Kalrez-FFKM - 90 Shore A - Black - SES-584393 O-ring Black349 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 417.96x4 Kalrez-FFKM - 90 Shore A - Black - SES-584699 O-ring Black417.97 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 539x6 Kalrez-FFKM - 90 Shore A - Black - SES-585153 O-ring Black540 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 800x5 Kalrez-FFKM - 90 Shore A - Black - SES-585583 O-ring Black801 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.8x2.2 Kalrez-FFKM - 90 Shore A - Black - SES-739068 O-ring Black2.8 mm  x 2.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.5x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-542862 O-ring Black4.5 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12x1 Kalrez-FFKM - 90 Shore A - Black - SES-543262 O-ring Black12 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.86x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-543597 O-ring Black17.87 mm  x 2.62 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.