FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 581x5 Kalrez-FFKM - 90 Shore A - Black - SES-585299 O-ring Black582 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5.88x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-739322 O-ring Black5.89 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 29.5x0.6 Kalrez-FFKM - 90 Shore A - Black - SES-740611 O-ring Black29.5 mm  x 0.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-741344 O-ring Black55 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 131.8x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-742693 O-ring Black131.9 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 212x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-743493 O-ring Black212 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 283x7 Kalrez-FFKM - 90 Shore A - Black - SES-743994 O-ring Black284 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 407x6 Kalrez-FFKM - 90 Shore A - Black - SES-744856 O-ring Black408 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 26.7x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-543979 O-ring Black26.8 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19x1.6 Kalrez-FFKM - 90 Shore A - Black - SES-543659 O-ring Black19 mm  x 1.6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 109x3 Kalrez-FFKM - 90 Shore A - Black - SES-545860 O-ring Black109 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 334x3 Kalrez-FFKM - 90 Shore A - Black - SES-547702 O-ring Black334 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.95x2.75 Kalrez-FFKM - 90 Shore A - Black - SES-580434 O-ring Black17.96 mm  x 2.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 50.5x2.4 Kalrez-FFKM - 90 Shore A - Black - SES-581765 O-ring Black50.6 mm  x 2.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 228x3.1 Kalrez-FFKM - 90 Shore A - Black - SES-583752 O-ring Black228 mm  x 3.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 397x5 Kalrez-FFKM - 90 Shore A - Black - SES-584610 O-ring Black397 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1591x8.4 Kalrez-FFKM - 90 Shore A - Black - SES-585683 O-ring Black1592 mm  x 8.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.3x1.75 Kalrez-FFKM - 90 Shore A - Black - SES-739900 O-ring Black14.3 mm  x 1.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 44.6x2.9 Kalrez-FFKM - 90 Shore A - Black - SES-741115 O-ring Black44.7 mm  x 2.9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 104x10 Kalrez-FFKM - 90 Shore A - Black - SES-742288 O-ring Black104 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 184x12 Kalrez-FFKM - 90 Shore A - Black - SES-743267 O-ring Black184 mm  x 12 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 269x10 Kalrez-FFKM - 90 Shore A - Black - SES-743896 O-ring Black269 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.02x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-543107 O-ring Black9.02 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 62.6x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-545055 O-ring Black62.7 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 266.1x7 Kalrez-FFKM - 90 Shore A - Black - SES-547298 O-ring Black266.2 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 13.66x2.46 Kalrez-FFKM - 90 Shore A - Black - SES-580207 O-ring Black13.67 mm  x 2.46 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 48.5x2 Kalrez-FFKM - 90 Shore A - Black - SES-581712 O-ring Black48.6 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 242x3 Kalrez-FFKM - 90 Shore A - Black - SES-583843 O-ring Black242 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 412x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-584670 O-ring Black413 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 3.2x1.1 Kalrez-FFKM - 90 Shore A - Black - SES-739109 O-ring Black3.2 mm  x 1.1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 22x0.61 Kalrez-FFKM - 90 Shore A - Black - SES-740296 O-ring Black22 mm  x 0.61 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 53.98x6.35 Kalrez-FFKM - 90 Shore A - Black - SES-741325 O-ring Black53.99 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 136.5x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-742749 O-ring Black136.6 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 228.83x1.78 Kalrez-FFKM - 90 Shore A - Black - SES-743608 O-ring Black228.84 mm  x 1.78 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 308x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-744178 O-ring Black308 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 461x9 Kalrez-FFKM - 90 Shore A - Black - SES-745217 O-ring Black461 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33.5x1.8 Kalrez-FFKM - 90 Shore A - Black - SES-544198 O-ring Black33.6 mm  x 1.8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158.3x3.53 Kalrez-FFKM - 90 Shore A - Black - SES-546490 O-ring Black158.4 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 4.85x1.4 Kalrez-FFKM - 90 Shore A - Black - SES-579537 O-ring Black4.85 mm  x 1.4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 35.8x1 Kalrez-FFKM - 90 Shore A - Black - SES-581341 O-ring Black35.9 mm  x 1 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.