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The cause of the coating peeling and what is the cause of the rust spots? _ ndfeb strong magnet manufacturers

by:Newland     2020-04-04
The cause of the coating peeling and what is the cause of the rust spots?   Qualified plating products, under normal circumstances, plating coating should not be rust spots. In too humid, air liquidity is not good, when the temperature difference is bigger, even the salt fog test qualified products long stored in the bad environment can produce rusty spot. When plating products stored in a harsh environment, base layer to further react with water, will cause the base layer and the adhesion strength of the coating is reduced, serious when still can cause local pulverization, basal and natural peeling. Electroplating products should not be placed in high humidity places for a long time, should be placed in a cool, dry place
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