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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	25 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	51 mm x 5.3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	250 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	45 mm x 1.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	45.6 mm x 1.5 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	53 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	456.07 mm x 6.99 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	31 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	31.48 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	156 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	16 mm x 2 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	324 mm x 5.34 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	329.58 mm x 6.99 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	164 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	33 mm x 4 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	165 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	169.6 mm x 8.4 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	34 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	34.30 mm x 5.33 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	17.5 mm x 1.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	340 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	170 mm x 15 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	346 mm x 6.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	170.83 mm x 5.33 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	35 mm x 2.2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	174 mm x 3.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	175 mm x 5.3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	354.98 mm x 6.99 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	179 mm x 5.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	1.5 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	105 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	100 mm x 8 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	103 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	104.38 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	105.6 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	11 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	114.3 mm x 5.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	380.38 mm x 5.33 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	39 mm x 3.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	119.3 mm x 5.2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee

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What is EPDM?

EPDM is the abbreviation of Ethylene, Propylene, Diene and Monomer and is a group of synthetic rubbers of elastomers. It’s made through the polymerization of tene, propene and a diene, this is an unsaturated hydrocarbon with two double bonds.

This makes EPDM a terpolymer, this is a polymer obtained from three monomers.

EPDM rubber has been used since around 1963 and finds many applications in, for example, construction (roof sealing), the automotive sector (sealing rings, sealing strips on windows and doors), belts, conveyor belts and hoses (for example garden hoses), electrical insulation, pond liner and so on. EPDM is marketed under multiple brand names. EPDM roof coverings can be installed fire-proof in accordance with NEN6050. In the Netherlands, roofing systems must comply with the BroofT1 qualification, which means that an EPDM roofing film must be applied that is fly-proof. EPDM pond liner does not meet this requirement.

The ratio between the amounts of the different monomers used largely determines the properties of the EPDM polymer. The ethylene content can vary from around 45 to 80%. Lower ethylene levels yield a rather amorphous polymer; higher ethylene levels a more crystalline polymer. The diene content can range from approximately 1 to 10/12%. With a higher diene content, a higher degree of vulcanization can be obtained, i.e. a "firmer" rubber.

What is EPDM used for?

In construction
Roof covering
Automotive
Conveyor belts
Sealing
Hoses

The advantages of EPDM:

It has a temperature working range from -75 °C to +125 °C
It is flexible and ages hardly
Good resistance to many acids
Excellent resistance to heat, water and steam

The downside of EPDM:

Not resistant to chlorine
It’s not recommended for use in conditions with gasoline, petroleum, fats and hydrocarbon environments

On this page we offer our range of 75 Shore A 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 75 Shore A made from EPDM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.

EPDM O-rings 75 Shore A

What is EPDM?