FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 172.8x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-583348 O-ring Black172.9 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 372.8x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-584501 O-ring Black372.9 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 2.5x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-739045 O-ring Black2.5 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 16.38x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-740020 O-ring Black16.39 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.9x6.6 Kalrez-FFKM - 90 Shore A - Black - SES-741597 O-ring Black64.10 mm  x 6.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 149x2.7 Kalrez-FFKM - 90 Shore A - Black - SES-742895 O-ring Black149 mm  x 2.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 248x13 Kalrez-FFKM - 90 Shore A - Black - SES-743753 O-ring Black249 mm  x 13 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 335x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-744370 O-ring Black335 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 495x8 Kalrez-FFKM - 90 Shore A - Black - SES-745468 O-ring Black496 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 582.68x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-541634 O-ring Black582.69 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 43.7x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-544528 O-ring Black43.8 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 219.49x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-546988 O-ring Black219.50 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15x2.25 Kalrez-FFKM - 90 Shore A - Black - SES-580283 O-ring Black15 mm  x 2.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 84x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-582367 O-ring Black84 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 266x2 Kalrez-FFKM - 90 Shore A - Black - SES-583994 O-ring Black266 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 612x5 Kalrez-FFKM - 90 Shore A - Black - SES-585391 O-ring Black613 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.3x2.05 Kalrez-FFKM - 90 Shore A - Black - SES-739669 O-ring Black10.3 mm  x 2.05 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 42.39x5.31 Kalrez-FFKM - 90 Shore A - Black - SES-741052 O-ring Black42.40 mm  x 5.31 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 119.2x5.2 Kalrez-FFKM - 90 Shore A - Black - SES-742542 O-ring Black119.3 mm  x 5.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 227x10 Kalrez-FFKM - 90 Shore A - Black - SES-743599 O-ring Black227 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 323x6 Kalrez-FFKM - 90 Shore A - Black - SES-744276 O-ring Black323 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 490x7.5 Kalrez-FFKM - 90 Shore A - Black - SES-745426 O-ring Black491 mm  x 7.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.3x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-543005 O-ring Black7.3 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black72 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black380 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 30.5x3.15 Kalrez-FFKM - 90 Shore A - Black - SES-581129 O-ring Black30.6 mm  x 3.15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 161x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-583264 O-ring Black161 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 411x8 Kalrez-FFKM - 90 Shore A - Black - SES-584667 O-ring Black412 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-739254 O-ring Black5 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33x4.7 Kalrez-FFKM - 90 Shore A - Black - SES-740742 O-ring Black33 mm  x 4.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 98.5x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-742209 O-ring Black98.6 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 204x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-743434 O-ring Black204 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 300x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-744115 O-ring Black300 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 473x6 Kalrez-FFKM - 90 Shore A - Black - SES-745312 O-ring Black473 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 582.68x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-541635 O-ring Black582.69 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 56.8x3 Kalrez-FFKM - 90 Shore A - Black - SES-544922 O-ring Black56.9 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 376x3 Kalrez-FFKM - 90 Shore A - Black - SES-547900 O-ring Black377 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33.2x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-581239 O-ring Black33.3 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 177.8x8.6 Kalrez-FFKM - 90 Shore A - Black - SES-583388 O-ring Black177.9 mm  x 8.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 455x5 Kalrez-FFKM - 90 Shore A - Black - SES-584843 O-ring Black456 mm  x 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.