FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 61.24x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-545030 O-ring Black61.25 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20x7 Kalrez-FFKM - 90 Shore A - Black - SES-543722 O-ring Black20 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.3x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-543773 O-ring Black21.4 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 94.6x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-545670 O-ring Black94.7 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22.3x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-580686 O-ring Black22.4 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 483x7 Kalrez-FFKM - 90 Shore A - Black - SES-584925 O-ring Black484 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 103x9.5 Kalrez-FFKM - 90 Shore A - Black - SES-742278 O-ring Black103 mm  x 9.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 129.8x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-546158 O-ring Black129.9 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 31.7x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-581173 O-ring Black31.8 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 626x6 Kalrez-FFKM - 90 Shore A - Black - SES-585415 O-ring Black626 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 139x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-742777 O-ring Black139 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.04x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-541296 O-ring Black17.05 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 164.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-546558 O-ring Black164.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 46.4x5.4 Kalrez-FFKM - 90 Shore A - Black - SES-581645 O-ring Black46.5 mm  x 5.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.85x0.66 Kalrez-FFKM - 90 Shore A - Black - SES-738979 O-ring Black1.85 mm  x 0.66 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 186x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-743280 O-ring Black187 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 138x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-546253 O-ring Black138 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 34x2.15 Kalrez-FFKM - 90 Shore A - Black - SES-581271 O-ring Black34 mm  x 2.15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 707x8 Kalrez-FFKM - 90 Shore A - Black - SES-585514 O-ring Black708 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 148x8 Kalrez-FFKM - 90 Shore A - Black - SES-742888 O-ring Black148 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27x2 Kalrez-FFKM - 90 Shore A - Black - SES-543987 O-ring Black27 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-544810 O-ring Black53 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.65x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-579821 O-ring Black8.66 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 280x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-584070 O-ring Black281 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 58.5x3 Kalrez-FFKM - 90 Shore A - Black - SES-741426 O-ring Black58.6 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.9x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-541254 O-ring Black2.9 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 168x5 Kalrez-FFKM - 90 Shore A - Black - SES-546593 O-ring Black168 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.8x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-580334 O-ring Black15.8 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 392x4 Kalrez-FFKM - 90 Shore A - Black - SES-584578 O-ring Black393 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 83x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-741935 O-ring Black83 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-543758 O-ring Black21 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 370x6 Kalrez-FFKM - 90 Shore A - Black - SES-547877 O-ring Black371 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 130.5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-582967 O-ring Black130.6 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 196.44x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-541553 O-ring Black196.45 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 203x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-546870 O-ring Black204 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 56.6x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-581893 O-ring Black56.7 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.59x0.76 Kalrez-FFKM - 90 Shore A - Black - SES-739299 O-ring Black5.59 mm  x 0.76 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 218x8 Kalrez-FFKM - 90 Shore A - Black - SES-743538 O-ring Black218 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9x1.65 Kalrez-FFKM - 90 Shore A - Black - SES-579851 O-ring Black9 mm  x 1.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 286x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-584104 O-ring Black286 mm  x 2.5 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 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.