Browse Publications Technical Papers 2007-01-1519
2007-04-16

Rubber Peeling Mechanism of SOFT METAL ® for CHG 2007-01-1519

SOFT METAL (SUS plate coated with rubber) is used for cylinder head gasket (CHG). Conventionally, this SUS plate is preprocessed using coating chromate. When this was changed to chrome-free agent, the rubber was peeled off from the plate. There are found that this may be due to the electrochemical reaction caused by the contact between different metals-Al of the engine block and Fe (SUS) of CHG.

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