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 |
Image Show:
Name: epdm o rings Color: Black , red, green or as you like