EPDM O-rings 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	10.78 mm x 2.95 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	35.7 mm x 3.6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	227.9 mm x 8.6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	451 mm x 11 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	591 mm x 8 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	53.6 mm x 1.2 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	126 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	256 mm x 10 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	43.9 mm x 3.1 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	451 mm x 3.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	556 mm x 8 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	351 mm x 8.4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	2.21 mm x 2.06 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	46.3 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	235 mm x 8.6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	479 mm x 7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	10.8 mm x 2.65 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	126.3 mm x 2.62 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	352 mm x 5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	2.3 mm x 0.45 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	285 mm x 2.4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	2.2 mm x 1.3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	46.39 mm x 2.03 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	172.7 mm x 2.4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	17 mm x 2 mm	EPDM-EP-EDT-EPR	70 Shore A	Ja
O-ring Black	74.5 mm x 3.1 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	421 mm x 3.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	285.88 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	2.3 mm x 0.8 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	30.5 mm x 4.8 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	174 mm x 5.3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	17 mm x 0.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	71 mm x 3.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	522 mm x 7.25 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	286 mm x 10 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	2.4 mm x 0.9 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	46.8 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	173.7 mm x 5.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	7.93 mm x 4.76 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	74.7 mm x 1 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