EPDM Rubber O Ring
EPDM o rings have excellent resistance to ozone, weathering and sunlight. They have good heat resistance, low compression set and good flexibility at low temperatures
EPDM o-ring compounds also withstand the effects of brake fluids, Skydrol, and hydraulic fluids. EPDM o-rings are not recommended for gasoline, petroleum oilm grease, and hydrocarbon environments
Advantages
• Excellent chemical and thermal resistance.
• Resistant to steam, alkalis, polar solvent
• Resistant to ketones, hot & cold water
• Good heat & compression resistance
• Resistant to ozone, sunlight, alcohol
• Good flexibility at low temperatures
Application
• Water applications and low torque drive belts
• Outdoor weather resistant uses
• Automotive cooling systems
• Automotive brake systems
• Hot water applications
• Steam., etc
EPDM Properties
|
Item |
EPDM |
Test Method |
|
Color |
White/black |
|
|
Specific gravity |
1.2-1.5g/cm3 |
ASTM D297 |
|
Hardness |
50°-90 Shore A |
ASTM D2240 |
|
Tensile strength |
9 MPa (min) |
ASTM D412 |
|
Elongation at break |
250% (min) |
ASTM D412 |
|
Size |
Varies |
|
|
Compression set 70°C 22 hrs |
Permanent set 10-20%(max) |
ASTM D 395B |
|
Tear resistance |
20 kg/cm (min) |
ASTM D624 |
|
Temperature range |
-40°C to +90°C |
|
Key: 
= Excellent , 
= Good, 
= Fair, X = Not Recommended
