What is EPDM O-rings?
EPDM
o-rings also called ethylene propylene o-rings, are a family of
synthetic elastomers with lower cost steam and chemical resistance,
particularly for applications involving solvents, acids and other mild
chemicals. We have large stocks of EPDM o-rings and made on demand
custom manufacturing often without tooling fees, so the EPDM o-rings you
need are always available. No matter you will use it for water systems,
pharmaceutical, braking systems, medical, food or dairy use, we can
deliver your EPDM o-rings fast and efficiently.
Why We Use EPDM O-ring and Its Advantages?
EPDM
o-rings have a great acceptance in the sealing world because of its
excellent resistance to heat, water and steam, alkali, mild acidic and
oxygenated solvents, ozone, and sunlight (UV). These EPDM o-rings also
withstand the effect of brake fluids and Skydrol and other phosphate
ester-based hydraulic fluids. EPDM o-rings are not recommended for
gasoline, petroleum oil and grease, and hydrocarbon environments.
Grade of EPDM
EPDM Sulphur cured: it is inexpensive material for normal use, maximum temperature of +120°C (+250°F).
EPDM
Peroxide cured: it is for hot water, steam, alcohols, ketones, engine
coolants, organic and inorganic acids and bases. Not resistant to
mineral oils, greases and fuels. For maximum temperatures of +150°C
(+300°F).
Mechnical Properties
EPDM
o-rings have good Compression Set Resistance, good Heat Stability, fair
Shorter Term Resilience, good Permeation Resistance and they have
excellent Electrical Insulator.
Typical Applications
EPDM
o-rings are most commonly used in applications involving solvents,
acids, brake fluids, and other aggressive chemicals. They are also known
for their resistance to high temperature steam. EPDM has very poor
compatibility with most mineral and petroleum based oils and is seldom
used in those applications.
Physical Properties
EPDM compound
|
Hardness shore A
|
Rubber Color
|
Temp rang (°C)
|
Tensile strength (mpa)
|
Elongation at break (%)
|
E3006
|
60
|
Black
|
-55 to 125
|
14
|
270
|
E3007
|
70
|
Black
|
-55 to 130
|
12.5
|
210
|
E3075
|
75
|
Black
|
-50 to 130
|
10.5
|
185
|
E3080
|
80
|
Black
|
-30 to 130
|
15
|
220
|
E3090
|
90
|
Black
|
-50 to 130
|
17
|
232
|
E3065
|
65
|
Black
|
-55 to 150
|
13
|
240
|
Other physical properties, color and hardness shore A can be made as your requests
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