FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 85.5x4.3 Kalrez-FFKM - 90 Shore A - Black - SES-741975 O-ring Black85.6 mm  x 4.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 144x8 Kalrez-FFKM - 90 Shore A - Black - SES-742847 O-ring Black144 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 222x6.53 Kalrez-FFKM - 90 Shore A - Black - SES-743566 O-ring Black223 mm  x 6.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 281.47x5.34 Kalrez-FFKM - 90 Shore A - Black - SES-743983 O-ring Black281.48 mm  x 5.34 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 389x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-744728 O-ring Black389 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 532.26x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-541631 O-ring Black532.27 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22x4 Kalrez-FFKM - 90 Shore A - Black - SES-543800 O-ring Black22 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 75x2 Kalrez-FFKM - 90 Shore A - Black - SES-545315 O-ring Black75 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 242x4 Kalrez-FFKM - 90 Shore A - Black - SES-547142 O-ring Black242 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.8x2.35 Kalrez-FFKM - 90 Shore A - Black - SES-579600 O-ring Black5.8 mm  x 2.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27x3.11 Kalrez-FFKM - 90 Shore A - Black - SES-580951 O-ring Black27 mm  x 3.11 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 71.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-582178 O-ring Black71.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 224.3x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-583730 O-ring Black224.4 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 366x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584472 O-ring Black367 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 649x6 Kalrez-FFKM - 90 Shore A - Black - SES-585446 O-ring Black650 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 6x0.81 Kalrez-FFKM - 90 Shore A - Black - SES-739332 O-ring Black6 mm  x 0.81 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 23x6.5 Kalrez-FFKM - 90 Shore A - Black - SES-740351 O-ring Black23 mm  x 6.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-543385 O-ring Black14 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 47.55x3.55 Kalrez-FFKM - 90 Shore A - Black - SES-544662 O-ring Black47.56 mm  x 3.55 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 174.5x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-546648 O-ring Black174.6 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 400x5 Kalrez-FFKM - 90 Shore A - Black - SES-548005 O-ring Black401 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 23.32x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-580742 O-ring Black23.32 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 58x1 Kalrez-FFKM - 90 Shore A - Black - SES-581923 O-ring Black58 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 187x4 Kalrez-FFKM - 90 Shore A - Black - SES-583457 O-ring Black187 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 368x5 Kalrez-FFKM - 90 Shore A - Black - SES-584489 O-ring Black368 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 708.3x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-585515 O-ring Black708.4 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7x0.7 Kalrez-FFKM - 90 Shore A - Black - SES-739421 O-ring Black7 mm  x 0.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 31x15 Kalrez-FFKM - 90 Shore A - Black - SES-740668 O-ring Black31 mm  x 15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 125x7.5 Kalrez-FFKM - 90 Shore A - Black - SES-742617 O-ring Black125 mm  x 7.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 195x3.2 Kalrez-FFKM - 90 Shore A - Black - SES-743357 O-ring Black195 mm  x 3.2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 270x5.34 Kalrez-FFKM - 90 Shore A - Black - SES-743900 O-ring Black270 mm  x 5.34 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 369x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-744594 O-ring Black369 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 495x4.5 Kalrez-FFKM - 90 Shore A - Black - SES-745466 O-ring Black496 mm  x 4.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.2x2.6 Kalrez-FFKM - 90 Shore A - Black - SES-543680 O-ring Black19.3 mm  x 2.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 83x3 Kalrez-FFKM - 90 Shore A - Black - SES-545464 O-ring Black83 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 278x7 Kalrez-FFKM - 90 Shore A - Black - SES-547359 O-ring Black278 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 10.8x1.9 Kalrez-FFKM - 90 Shore A - Black - SES-579995 O-ring Black10.8 mm  x 1.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40.7x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-581513 O-ring Black40.8 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 155x5.5 Kalrez-FFKM - 90 Shore A - Black - SES-583212 O-ring Black155 mm  x 5.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 299x12 Kalrez-FFKM - 90 Shore A - Black - SES-584179 O-ring Black299 mm  x 12 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.