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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	253.60 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	265 mm x 3 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	27.5 mm x 1.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	28 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	29.75 mm x 2.95 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	3 mm x 1.2 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	30 mm x 6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	300 mm x 6.5 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	179.3 mm x 5.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	18 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	100 mm x 8 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	102 mm x 2.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	189.88 mm x 6.99 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	107 mm x 7 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	190.18 mm x 2.62 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	11.5 mm x 3 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	196.45 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	111.9 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	2.5 mm x 1.2 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	114 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	20 mm x 1.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	200 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	204 mm x 6.35 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	12 mm x 2.4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	21 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	12.30 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	215 mm x 6 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	22 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	123 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	221 mm x 3 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	227 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	126.73 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	235 mm x 4 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	240 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	13 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	25.6 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	13.88 mm x 3.53 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	256 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	130 mm x 3 mm	EPDM-EP-EDT-EPR	75 Shore A	Nee
O-ring Black	240.10 mm x 3.53 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?