ORK Round EPDM Rubber O-Ring Material Fuel Resistant 70A Durometer
ORK Round EPDM Rubber O-Ring Material Fuel Resistant 70A Durometer
Product Features
- Made of ethylene propylene diene monomer (EPDM) rubber for use with a variety of chemicals and environments
- Can be used in a wide temperature range from -70 degrees F (-57 degrees C) to 300 degrees F (149 degrees C)
- Round in cross-section to provide a seal between cylindrical overlapping surfaces
- Durometer (hardness) of 70A for resistance to penetration
- Meets standards defined by Aerospace Standard AS568A
Product Details
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Product Description
This EPDM O-ring is black in color, round in cross-section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.
EPDM is acceptable for temperature applications between -70 degrees F (-57 degrees C) to 300 degrees F (149 degrees C). It is compatible for use with water and steam, silicone oil and grease, polar solvents (alcohols), acids, glycol-based brake fluids, ozone, and weathering. It is vulnerable to many oils, gasoline, and solvents. This material meets ASTM International standards.
This EPDM O-ring has a shore durometer of 70A. Shore durometer is the hardness of a material, and its resistance to permanent indentation. A higher durometer value indicates greater resistance to indentation on a scale of 0 to 100, with 100 indicating no indentation.
O-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves, and various cylinders. They are circular in shape, with a round cross section and a hole in the center, similar to a doughnut. O-rings are available in various sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.
This EPDM O-ring meets standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.
| Press Cure | Post Cure | ||
| Sheet : 5min 170℃ | Sheet : 1 hrs 125℃ | ||
| Button : 10 min 170℃ | Button : 1 hrs 125℃ | ||
| ORIGINAL PROPERTIES | SPECIFICATION | TEST RESULT | |
| HARDNESS SHORE A | 70°±5 | 70 | |
| TENSILE STRENGTH, MPA, MIN | 14 | 14.9 | |
| ULTIMATE ELONGATION, ％, MIN | 300 | 327 | |
| SPECIFIC GRAVITY (g/cm3) | 1.15 | ||
| HEAT RESISTANCE 70 H . AT 100℃ | |||
| CHANGE IN HARDNESS, POINTS | 10 | 2 | |
| CHANGE IN TENSILES STRENGTH,% | -25 | -4.1 | |
| ULTIMATE ELONGATION,MAX % | -25 | -3.4 | |
| COMPRESSION SET, MAX, 22H AT 70℃ | 25 | 8 | |
| RESISTANCE TO OZONE | |||
| EXPOSURE METHOD B | N0 CRACK | PASS | |
| WATER RESISTANCE:100℃,70H (EA14) | |||
| VOLUME CHAGE,% | ±5 | 3.7 | |
| LOW-TEMPERATURE BRITTLENESS NONBRITTLE | |||
| AFTER 3MIN AT -55°C (F19) | NONBRITTLE | PASS | |
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