FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 600x6 Kalrez-FFKM - 90 Shore A - Black - SES-585371 O-ring Black601 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 135x2.41 Kalrez-FFKM - 90 Shore A - Black - SES-742731 O-ring Black135 mm  x 2.41 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.48x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-580254 O-ring Black14.49 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 355x8.5 Kalrez-FFKM - 90 Shore A - Black - SES-584424 O-ring Black355 mm  x 8.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 71.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-741709 O-ring Black71.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black69 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 12.7x2 Kalrez-FFKM - 90 Shore A - Black - SES-580140 O-ring Black12.7 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 332x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584312 O-ring Black333 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 64.98x5.78 Kalrez-FFKM - 90 Shore A - Black - SES-741598 O-ring Black64.99 mm  x 5.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 8.6x1.27 Kalrez-FFKM - 90 Shore A - Black - SES-543075 O-ring Black8.6 mm  x 1.27 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 236x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-547104 O-ring Black237 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 68x6.99 Kalrez-FFKM - 90 Shore A - Black - SES-582118 O-ring Black68 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 63.5x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-545081 O-ring Black63.6 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 11.2x2 Kalrez-FFKM - 90 Shore A - Black - SES-580026 O-ring Black11.2 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 304x5 Kalrez-FFKM - 90 Shore A - Black - SES-584198 O-ring Black304 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 60.2x5.35 Kalrez-FFKM - 90 Shore A - Black - SES-741485 O-ring Black60.3 mm  x 5.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27.78x1.02 Kalrez-FFKM - 90 Shore A - Black - SES-544008 O-ring Black27.79 mm  x 1.02 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.1x3 Kalrez-FFKM - 90 Shore A - Black - SES-544058 O-ring Black29.2 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-544183 O-ring Black33 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 469x6 Kalrez-FFKM - 90 Shore A - Black - SES-548217 O-ring Black470 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 157.5x7 Kalrez-FFKM - 90 Shore A - Black - SES-583237 O-ring Black157.6 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 119.48x3.15 Kalrez-FFKM - 90 Shore A - Black - SES-546006 O-ring Black119.49 mm  x 3.15 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 27x3.25 Kalrez-FFKM - 90 Shore A - Black - SES-580953 O-ring Black27 mm  x 3.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 532x6 Kalrez-FFKM - 90 Shore A - Black - SES-585130 O-ring Black532 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19.4x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-740176 O-ring Black19.5 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 336.6x8 Kalrez-FFKM - 90 Shore A - Black - SES-744388 O-ring Black336.7 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 20.3x4.9 Kalrez-FFKM - 90 Shore A - Black - SES-740227 O-ring Black20.4 mm  x 4.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 345x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-744438 O-ring Black346 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 59.9x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-544985 O-ring Black59.10 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.8x0.99 Kalrez-FFKM - 90 Shore A - Black - SES-579930 O-ring Black9.9 mm  x 0.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 286.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-584108 O-ring Black286.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 57.02x3.57 Kalrez-FFKM - 90 Shore A - Black - SES-741398 O-ring Black57.03 mm  x 3.57 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 78.97x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-545378 O-ring Black78.98 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 15.6x3.4 Kalrez-FFKM - 90 Shore A - Black - SES-580327 O-ring Black15.6 mm  x 3.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 373x4 Kalrez-FFKM - 90 Shore A - Black - SES-584503 O-ring Black374 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 76.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-741795 O-ring Black76.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 21.89x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-541311 O-ring Black21.90 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 156x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-546473 O-ring Black156 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 37.7x4 Kalrez-FFKM - 90 Shore A - Black - SES-581423 O-ring Black37.8 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 824x6 Kalrez-FFKM - 90 Shore A - Black - SES-585602 O-ring Black825 mm  x 6 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.