FFKM O-rings EN8SR

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 110x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-847104 O-ring Black110 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 410x3 Kalrez-FFKM - 75 Shore A - Black - SES-853855 O-ring Black410 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.72x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-837718 O-ring Black5.72 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black62.6 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 292x10 Kalrez-FFKM - 75 Shore A - Black - SES-851917 O-ring Black292 mm  x 10 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 28.6x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-841641 O-ring Black28.7 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 151x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-848701 O-ring Black151 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 11.89x0.81 Kalrez-FFKM - 75 Shore A - Black - SES-839019 O-ring Black11.89 mm  x 0.81 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 95.5x6 Kalrez-FFKM - 75 Shore A - Black - SES-846480 O-ring Black95.6 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 598x5 Kalrez-FFKM - 75 Shore A - Black - SES-855566 O-ring Black599 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 8x2.8 Kalrez-FFKM - 75 Shore A - Black - SES-838250 O-ring Black8 mm  x 2.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 93x4.5 Kalrez-FFKM - 75 Shore A - Black - SES-846354 O-ring Black93 mm  x 4.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 457x5.5 Kalrez-FFKM - 75 Shore A - Black - SES-854506 O-ring Black458 mm  x 5.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 54.41x4.06 Kalrez-FFKM - 75 Shore A - Black - SES-844082 O-ring Black54.42 mm  x 4.06 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 350x2.3 Kalrez-FFKM - 75 Shore A - Black - SES-852930 O-ring Black351 mm  x 2.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 87x2 Kalrez-FFKM - 75 Shore A - Black - SES-846059 O-ring Black87 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black54 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 429.25x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-854142 O-ring Black429.26 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 93.47x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-846368 O-ring Black93.48 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 41.8x0.8 Kalrez-FFKM - 75 Shore A - Black - SES-843050 O-ring Black41.9 mm  x 0.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black773 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 24x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-841010 O-ring Black24 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 489.2x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-854950 O-ring Black489.3 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 47.78x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-843569 O-ring Black47.79 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black129 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 122x1.3 Kalrez-FFKM - 75 Shore A - Black - SES-847641 O-ring Black123 mm  x 1.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 142.64x4 Kalrez-FFKM - 75 Shore A - Black - SES-848422 O-ring Black142.65 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15.4x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-839649 O-ring Black15.5 mm  x 1.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 193.07x7 Kalrez-FFKM - 75 Shore A - Black - SES-849863 O-ring Black193.08 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 17.12x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-839952 O-ring Black17.13 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 195x4 Kalrez-FFKM - 75 Shore A - Black - SES-849908 O-ring Black195 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 17.8x3.51 Kalrez-FFKM - 75 Shore A - Black - SES-840058 O-ring Black17.9 mm  x 3.51 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 216x6.99 Kalrez-FFKM - 75 Shore A - Black - SES-850401 O-ring Black216 mm  x 6.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black5.16 mm  x 1.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 236x12 Kalrez-FFKM - 75 Shore A - Black - SES-850813 O-ring Black237 mm  x 12 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 10x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-838653 O-ring Black10 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 298.7x8.6 Kalrez-FFKM - 75 Shore A - Black - SES-852025 O-ring Black298.8 mm  x 8.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 12x4 Kalrez-FFKM - 75 Shore A - Black - SES-839069 O-ring Black12 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 346x2 Kalrez-FFKM - 75 Shore A - Black - SES-852866 O-ring Black347 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 21.5x2.4 Kalrez-FFKM - 75 Shore A - Black - SES-840634 O-ring Black21.6 mm  x 2.4 mm FFKM - FFPM75 Shore A Neeicon-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 N8SR 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 N8SR certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.