EPDM rubber gasket

NegotiableUpdate on 05/06

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Overview

1. Low density and high filling performance EPDM rubber gasket is a type of rubber with a lower density, with a density of 0.87. In addition, it can be filled with a large amount of oil and fillers, which can reduce the cost of rubber products and compensate for the high price of ethylene propylene rubber raw rubber. Moreover, for high Mooney value ethylene propylene rubber, the decrease in physical and mechanical properties after high filling is not significant.

Product Details

Main performance

1.Low density and high filling capacity

　EPDM rubber gasketIt is a type of rubber with a lower density, and its density is0.87In addition, it can be filled with a large amount of oil and fillers, which can reduce the cost of rubber products and compensate for the high price of ethylene propylene rubber raw rubber. Moreover, for high Mooney value ethylene propylene rubber, the decrease in physical and mechanical properties after high filling is not significant.

2.Aging resistance

　　EPDM rubber gasketIt has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, steam resistance, color stability, electrical performance, oil charging, and room temperature fluidity. Ethylene propylene rubber products120Can be used for a long time at ℃150-200Can be used briefly or intermittently at ℃. Adding suitable anti-aging agents can increase their usage temperature. EPDM rubber crosslinked with peroxides can be used under more stringent conditions. EPDM rubber at ozone concentration50pphmStretching30%Under certain conditions, it can be achieved150hThe above is not cracked.

3.Corrosion resistance

Due to the lack of polarity and low unsaturation of ethylene propylene rubber, it has good resistance to various polar chemicals such as alcohols, acids, bases, oxidants, refrigerants, detergents, animal and vegetable oils, ketones, and fats; But in aliphatic and aromatic solvents(Such as gasoline, benzene, etc)Poor stability in mineral oil. Under the long-term action of concentrated acid, the performance will also decrease. inISO/TR 7620Zhonghui Jijin400Data on the effects of corrosive gaseous and liquid chemicals on various rubber properties, and regulations have been established1-4Level represents the degree of its effect, as shown in the table1. watch1 The Effect of Corrosive Chemicals on Rubber Properties grade Volume swelling rate/%Hardness reduction value Impact on performance 　　1<10 <10Mild or none 　　2 10-30<20smaller 　　3 30-60<30moderate 　　4 >60 >30