FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 9.53x2.69 Kalrez-FFKM - 90 Shore A - Black - SES-579914 O-ring Black9.53 mm  x 2.69 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 130x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-582959 O-ring Black130 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 622x5 Kalrez-FFKM - 90 Shore A - Black - SES-585406 O-ring Black623 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32.7x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-740732 O-ring Black32.8 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 149.2x6.2 Kalrez-FFKM - 90 Shore A - Black - SES-742901 O-ring Black149.3 mm  x 6.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 292x3.17 Kalrez-FFKM - 90 Shore A - Black - SES-744050 O-ring Black292 mm  x 3.17 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x1.25 Kalrez-FFKM - 90 Shore A - Black - SES-542884 O-ring Black5 mm  x 1.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 140x8 Kalrez-FFKM - 90 Shore A - Black - SES-546295 O-ring Black141 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.7x3.18 Kalrez-FFKM - 90 Shore A - Black - SES-580143 O-ring Black12.7 mm  x 3.18 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 522x10 Kalrez-FFKM - 90 Shore A - Black - SES-585075 O-ring Black523 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 24x0.7 Kalrez-FFKM - 90 Shore A - Black - SES-740389 O-ring Black24 mm  x 0.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 114.5x3.3 Kalrez-FFKM - 90 Shore A - Black - SES-742459 O-ring Black114.6 mm  x 3.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 268x10 Kalrez-FFKM - 90 Shore A - Black - SES-743891 O-ring Black268 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 450x5.5 Kalrez-FFKM - 90 Shore A - Black - SES-745132 O-ring Black451 mm  x 5.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 286.8x8 Kalrez-FFKM - 90 Shore A - Black - SES-584109 O-ring Black286.9 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.35x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-739381 O-ring Black6.35 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 87.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-742023 O-ring Black87.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 274x7 Kalrez-FFKM - 90 Shore A - Black - SES-743926 O-ring Black275 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.06x2.77 Kalrez-FFKM - 90 Shore A - Black O-ring Black2.06 mm  x 2.77 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7x2 Kalrez-FFKM - 90 Shore A - Black - SES-542988 O-ring Black7 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 194x3 Kalrez-FFKM - 90 Shore A - Black - SES-546792 O-ring Black194 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45.8x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-581633 O-ring Black45.9 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44x2 Kalrez-FFKM - 90 Shore A - Black - SES-544543 O-ring Black44 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.1x4 Kalrez-FFKM - 90 Shore A - Black - SES-579785 O-ring Black8.1 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 309x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-584218 O-ring Black310 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 184x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-583439 O-ring Black184 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.2x0.5 Kalrez-FFKM - 90 Shore A - Black - SES-739183 O-ring Black4.2 mm  x 0.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 80x1.75 Kalrez-FFKM - 90 Shore A - Black - SES-741878 O-ring Black80 mm  x 1.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 254x19 Kalrez-FFKM - 90 Shore A - Black - SES-743795 O-ring Black254 mm  x 19 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14x7 Kalrez-FFKM - 90 Shore A - Black - SES-739889 O-ring Black14 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 120x1 Kalrez-FFKM - 90 Shore A - Black - SES-742544 O-ring Black120 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 298x8 Kalrez-FFKM - 90 Shore A - Black - SES-744101 O-ring Black299 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.1x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-543278 O-ring Black12.2 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 389x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-547959 O-ring Black389 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 114x5.5 Kalrez-FFKM - 90 Shore A - Black - SES-582779 O-ring Black114 mm  x 5.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.51x0.35 Kalrez-FFKM - 90 Shore A - Black - SES-739046 O-ring Black2.51 mm  x 0.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 97.5x6 Kalrez-FFKM - 90 Shore A - Black - SES-742191 O-ring Black97.6 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 331x13 Kalrez-FFKM - 90 Shore A - Black - SES-744352 O-ring Black332 mm  x 13 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.5x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-543012 O-ring Black7.5 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 391x6 Kalrez-FFKM - 90 Shore A - Black - SES-547980 O-ring Black392 mm  x 6 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.