Dongguan Ruichen Sealing Co., Ltd.
TO BE O RING KING
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ORK EPDM O Ring Metric , Rubber Seal Ring Acild Resistant ISO9001 FDA
Description:
EPDM rubber (ethylene propylene diene monomer) is an elastomer which is
characterized by a wide range of applications. EPDM exhibits satisfactory compatibility
with fireproof hydraulic fluids, ketones, hot and cold water, and alkalis, and
unsatisfactory compatibility with most oils, gasoline, kerosene, aromatic and aliphatic
hydrocarbons, halogenated solvents and concentrated acids.
Properties:
Good Wear Resistance, Good Comp. Set Resistance, Moderate Short-Term
Resilience, Good Permeation Resistance
Temperature Range:
-60ºF to 250ºF
Recommended For:
Sunlight, Ozone, Weathering, Hot Water and Steam, Auto / Aircraft Brake Fluids,
Some Acids and Bases, Ketones and Alcohols, Plumbing
| 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 | |
