Ethylene Propylene 70A Durometer Hydraulic O-Ring

Ethylene Propylene 70A Durometer Hydraulic O-Ring

Engineered for demanding hydraulic and fluid-handling applications, this Ethylene Propylene (EPDM) O-ring delivers reliable sealing performance where petroleum-based fluids are absent. With a 70A Shore durometer hardness, it strikes the ideal balance between flexibility and compression resistance — maintaining a consistent seal under dynamic and static conditions alike.

Key Features

• Material: Ethylene Propylene (EPDM)
• Durometer: 70A Shore — medium hardness for broad sealing versatility
• Temperature Range: -65°F to +300°F (-54°C to +149°C)
• Excellent resistance to water, steam, ozone, UV, and weathering
• Compatible with: phosphate ester hydraulic fluids, brake fluids, ketones, alcohols, and dilute acids/bases
• Not recommended for: petroleum-based oils, fuels, or mineral-based hydraulic fluids

Applications

• Hydraulic systems using water-based or synthetic fluids
• Pneumatic sealing
• Automotive brake and cooling systems
• Industrial fluid handling and process equipment
• Outdoor and UV-exposed environments

Available in AS568 standard dash sizes. Confirm groove dimensions for proper gland design and compression ratio prior to installation.