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PCB Contaminated by minerail oil / wetting problem

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PCB Contaminated by minerail oil / wetting problem | 4 August, 2017

Dear all, I´d like to ask You, if somebody faced similar situation like we are facing in our plant right now. We have wetting problems with some of our products. During SEM/EDX we found on non-wetted parts residues of Mineral oil - white - heavy. Do You have an idea whete this contamintaion could came from? Thank You for hints!

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