FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 31.4x5 Kalrez-FFKM - 90 Shore A - Black - SES-581157 O-ring Black31.5 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 593.6x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-585345 O-ring Black593.7 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 128x12 Kalrez-FFKM - 90 Shore A - Black - SES-742651 O-ring Black128 mm  x 12 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 136x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-546244 O-ring Black136 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32.26x4.06 Kalrez-FFKM - 90 Shore A - Black - SES-581205 O-ring Black32.27 mm  x 4.06 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 617x5 Kalrez-FFKM - 90 Shore A - Black - SES-585396 O-ring Black618 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 133x6 Kalrez-FFKM - 90 Shore A - Black - SES-742706 O-ring Black133 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.7x3.6 Kalrez-FFKM - 90 Shore A - Black - SES-543699 O-ring Black19.8 mm  x 3.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 82.65x2.49 Kalrez-FFKM - 90 Shore A - Black - SES-582349 O-ring Black82.66 mm  x 2.49 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11x1.85 Kalrez-FFKM - 90 Shore A - Black - SES-739700 O-ring Black11 mm  x 1.85 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 266.7x12.7 Kalrez-FFKM - 90 Shore A - Black - SES-743880 O-ring Black266.8 mm  x 12.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 155x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-546460 O-ring Black155 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.7x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-581422 O-ring Black37.8 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 852x5 Kalrez-FFKM - 90 Shore A - Black - SES-585615 O-ring Black853 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 152.4x9.53 Kalrez-FFKM - 90 Shore A - Black - SES-742943 O-ring Black152.5 mm  x 9.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-544418 O-ring Black40 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-579310 O-ring Black2 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 197x5 Kalrez-FFKM - 90 Shore A - Black - SES-583536 O-ring Black197 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.6x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-541268 O-ring Black7.6 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 162x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-546536 O-ring Black162 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40.5x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-581505 O-ring Black40.6 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 52.8x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-687026 O-ring Black52.9 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 161x10 Kalrez-FFKM - 90 Shore A - Black - SES-743035 O-ring Black161 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.07x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-541266 O-ring Black6.07 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 156.59x3.48 Kalrez-FFKM - 90 Shore A - Black - SES-546477 O-ring Black156.60 mm  x 3.48 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 38.46x3.69 Kalrez-FFKM - 90 Shore A - Black - SES-581442 O-ring Black38.47 mm  x 3.69 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 90x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-545604 O-ring Black90 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20.29x3.18 Kalrez-FFKM - 90 Shore A - Black - SES-580571 O-ring Black20.30 mm  x 3.18 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 433x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-584767 O-ring Black433 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.15x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-543333 O-ring Black13.16 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 294x3 Kalrez-FFKM - 90 Shore A - Black - SES-547455 O-ring Black294 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 78.5x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-741839 O-ring Black78.6 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22x2 Kalrez-FFKM - 90 Shore A - Black - SES-543796 O-ring Black22 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 380x6 Kalrez-FFKM - 90 Shore A - Black - SES-547920 O-ring Black380 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 124x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-582893 O-ring Black124 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.5x3.9 Kalrez-FFKM - 90 Shore A - Black - SES-740278 O-ring Black21.6 mm  x 3.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.47x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-545100 O-ring Black64.48 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.6x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-580134 O-ring Black12.6 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 322.5x4 Kalrez-FFKM - 90 Shore A - Black - SES-584266 O-ring Black322.6 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 67.08x2.06 Kalrez-FFKM - 90 Shore A - Black - SES-741643 O-ring Black67.09 mm  x 2.06 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.