Project details

EPDM O-ring 90 hardness tester refers to the use of a hardness tester to measure the hardness value of EPDM O-ring seals. EPDM is a type of ethylene propylene diene monomer rubber with excellent high temperature resistance, oil resistance, aging resistance, and low compression permanent deformation properties. Therefore, it is widely used in fields such as automobiles, petroleum, and chemical engineering.

The measurement principle of EPDM O-ring hardness tester is mainly to measure the hardness of rubber through indentation method. During the testing process, the hardness tester presses a standard indenter into the surface of the specimen and maintains it under a certain load for a period of time. Then, the load is removed and the size of the indentation is measured. The hardness tester calculates the hardness value of the rubber based on the size of the indentation.

Generally speaking, the hardness range of EPDM O-rings is between 30 and 90 degrees Shore hardness A. The higher the hardness value, the better the hardness and wear resistance of the rubber, but it also affects its resilience and sealing performance. Therefore, when selecting the appropriate hardness, it is necessary to comprehensively consider the performance and application scenarios of rubber.

When selecting EPDM O-ring hardness tester, factors such as accuracy, stability, ease of operation, and service life of the hardness tester need to be considered. At the same time, you need to choose a hardness tester brand and model that meets your needs and budget.