FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 4.7x1.42 Kalrez-FFKM - 90 Shore A - Black - SES-541260 O-ring Black4.7 mm  x 1.42 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 354.97x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-541605 O-ring Black354.98 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.74x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-542921 O-ring Black5.74 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.2x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-580169 O-ring Black13.2 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.6x4 Kalrez-FFKM - 90 Shore A - Black - SES-580526 O-ring Black19.7 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 25x1.35 Kalrez-FFKM - 90 Shore A - Black - SES-580842 O-ring Black25 mm  x 1.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-543131 O-ring Black9.5 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.2x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-581069 O-ring Black29.3 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35.3x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-581322 O-ring Black35.4 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 41x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-581517 O-ring Black41 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 52.5x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-581805 O-ring Black52.6 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-543376 O-ring Black14 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 71.4x1.4 Kalrez-FFKM - 90 Shore A - Black - SES-582180 O-ring Black71.5 mm  x 1.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 179x2 Kalrez-FFKM - 90 Shore A - Black - SES-743218 O-ring Black179 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 209x10 Kalrez-FFKM - 90 Shore A - Black - SES-743472 O-ring Black209 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 234x8 Kalrez-FFKM - 90 Shore A - Black - SES-743649 O-ring Black234 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 258.5x9 Kalrez-FFKM - 90 Shore A - Black - SES-743826 O-ring Black258.6 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 275x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-743932 O-ring Black276 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 294x7 Kalrez-FFKM - 90 Shore A - Black - SES-744066 O-ring Black294 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 312x10 Kalrez-FFKM - 90 Shore A - Black - SES-744203 O-ring Black313 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 361.06x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-744548 O-ring Black361.07 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 170.4x4 Kalrez-FFKM - 90 Shore A - Black - SES-546622 O-ring Black170.5 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 221x7 Kalrez-FFKM - 90 Shore A - Black - SES-547000 O-ring Black221 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 264x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-547278 O-ring Black265 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 310x4 Kalrez-FFKM - 90 Shore A - Black - SES-547566 O-ring Black310 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 354.9x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-547805 O-ring Black354.10 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 419x10 Kalrez-FFKM - 90 Shore A - Black - SES-548062 O-ring Black419 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.24x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-579798 O-ring Black8.25 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.5x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-580194 O-ring Black13.5 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 583x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-548391 O-ring Black584 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20.5x3.33 Kalrez-FFKM - 90 Shore A - Black - SES-580586 O-ring Black20.5 mm  x 3.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 25.5x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-580884 O-ring Black25.6 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 30.2x1 Kalrez-FFKM - 90 Shore A - Black - SES-581117 O-ring Black30.3 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.3x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-581399 O-ring Black37.4 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6.5x4 Kalrez-FFKM - 90 Shore A - Black - SES-579655 O-ring Black6.5 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 45.6x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-581630 O-ring Black45.7 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59.2x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-581953 O-ring Black59.3 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 85.8x1.25 Kalrez-FFKM - 90 Shore A - Black - SES-582398 O-ring Black85.9 mm  x 1.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 111.68x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-582745 O-ring Black111.69 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.92x1.83 Kalrez-FFKM - 90 Shore A - Black - SES-579938 O-ring Black9.92 mm  x 1.83 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.