FFKM O-rings EN9EX

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	700 mm x 6.99 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	132.6 mm x 3.3 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	16.10 mm x 2.7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	9.14 mm x 2.62 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	85.6 mm x 3.5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	312 mm x 3.53 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	28.6 mm x 5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	374 mm x 10 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	35.6 mm x 2.1 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	149.5 mm x 3.1 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	16.36 mm x 2.2 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	84.69 mm x 2.62 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	535 mm x 7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	106 mm x 3.2 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	31.9 mm x 3.5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	138 mm x 5.3 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	47.6 mm x 5.75 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	190 mm x 2.5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	1.98 mm x 1.98 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	158.76 mm x 6.35 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	35 mm x 3.5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	148.6 mm x 7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	38.6 mm x 3.55 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	161.17 mm x 1.78 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	20.30 mm x 3.45 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	99.6 mm x 5.7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	37.6 mm x 3.55 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	158.13 mm x 7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	31 mm x 4.7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	135 mm x 7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	481.47 mm x 6.99 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	86.6 mm x 2.5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	31.5 mm x 6.5 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	137.08 mm x 5.33 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	489 mm x 7 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	89 mm x 7.8 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	6.7 mm x 1.4 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	52 mm x 7.92 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	210 mm x 6 mm	FFKM - FFPM	90 Shore A	Ja
O-ring Black	9.10 mm x 1.9 mm	FFKM - FFPM	90 Shore A	Ja

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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 N9EX 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 N9EX certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.