FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 51x1.2 Kalrez-FFKM - 90 Shore A - Black - SES-544757 O-ring Black51 mm  x 1.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 74.27x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-545298 O-ring Black74.28 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 106x2 Kalrez-FFKM - 90 Shore A - Black - SES-545829 O-ring Black106 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 141x3 Kalrez-FFKM - 90 Shore A - Black - SES-546303 O-ring Black142 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 185x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-546731 O-ring Black185 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 250x3 Kalrez-FFKM - 90 Shore A - Black - SES-547190 O-ring Black250 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 319x8 Kalrez-FFKM - 90 Shore A - Black - SES-547628 O-ring Black319 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 380x7 Kalrez-FFKM - 90 Shore A - Black - SES-547921 O-ring Black380 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 572x7 Kalrez-FFKM - 90 Shore A - Black - SES-548382 O-ring Black573 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8x1.4 Kalrez-FFKM - 90 Shore A - Black - SES-579773 O-ring Black8 mm  x 1.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14x1.7 Kalrez-FFKM - 90 Shore A - Black - SES-580223 O-ring Black14 mm  x 1.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22x2.75 Kalrez-FFKM - 90 Shore A - Black - SES-580668 O-ring Black22 mm  x 2.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 28.7x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-581047 O-ring Black28.8 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 36x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-581347 O-ring Black36 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 48x2.65 Kalrez-FFKM - 90 Shore A - Black - SES-581698 O-ring Black48 mm  x 2.65 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 80x1 Kalrez-FFKM - 90 Shore A - Black - SES-741875 O-ring Black80 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 110x7.5 Kalrez-FFKM - 90 Shore A - Black - SES-742385 O-ring Black110 mm  x 7.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 134x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-742720 O-ring Black134 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 168.7x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-743106 O-ring Black168.8 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 203x3.6 Kalrez-FFKM - 90 Shore A - Black - SES-743423 O-ring Black204 mm  x 3.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 239.3x6.5 Kalrez-FFKM - 90 Shore A - Black - SES-743683 O-ring Black239.4 mm  x 6.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 265x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-743866 O-ring Black266 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 285x8 Kalrez-FFKM - 90 Shore A - Black - SES-744010 O-ring Black285 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 306.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-744169 O-ring Black306.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 353x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-744491 O-ring Black353 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 407x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-744854 O-ring Black408 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 456.87x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-745175 O-ring Black456.88 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.8x2.1 Kalrez-FFKM - 90 Shore A - Black - SES-579455 O-ring Black3.8 mm  x 2.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.5x1.93 Kalrez-FFKM - 90 Shore A - Black - SES-579905 O-ring Black9.5 mm  x 1.93 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.9x2.8 Kalrez-FFKM - 90 Shore A - Black - SES-580431 O-ring Black17.9 mm  x 2.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 25.4x2.06 Kalrez-FFKM - 90 Shore A - Black - SES-580868 O-ring Black25.4 mm  x 2.06 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32x10 Kalrez-FFKM - 90 Shore A - Black - SES-581198 O-ring Black32 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 42x3.15 Kalrez-FFKM - 90 Shore A - Black - SES-581546 O-ring Black42 mm  x 3.15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-581961 O-ring Black59.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 99.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-582561 O-ring Black99.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 141x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-583077 O-ring Black142 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 189.4x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-583480 O-ring Black189.5 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 251x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-583895 O-ring Black252 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 294.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-584158 O-ring Black294.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 365x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584467 O-ring Black365 mm  x 3.5 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.