EPDM O-rings 70 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	74.18 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	324.3 mm x 5.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	19.5 mm x 5.3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	64.76 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	524 mm x 7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	21.5 mm x 4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	105.6 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	284.4 mm x 5.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	19.54 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	54.6 mm x 4.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	373 mm x 3.6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	141.10 mm x 1.9 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	304.4 mm x 8.6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	12 mm x 2.7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	83 mm x 4.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	314 mm x 10 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	1 mm x 0.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	427 mm x 5.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	110 mm x 1.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	306 mm x 4.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	12.02 mm x 3.63 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	148.88 mm x 2.4 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	275 mm x 7 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	1.2 mm x 1.6 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	375 mm x 3.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	141.10 mm x 1.9 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	349 mm x 5.33 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	12.3 mm x 1.65 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	98 mm x 1.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	276 mm x 3.1 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	1.4 mm x 0.8 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	527 mm x 3 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	124 mm x 8.5 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	351 mm x 14 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	12.38 mm x 3.53 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	83.6 mm x 1.78 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	276 mm x 11 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	1.52 mm x 1.42 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	430 mm x 17 mm	EPDM-EP-EDT-EPR	70 Shore A	Nee
O-ring Black	78.6 mm x 1.2 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