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Surface Contaminant
Example of a Surface Contaminant

Surface contaminants will create an ungalvanized area where the contaminant was originally located. This can be caused by paint, oil, wax, or lacquer not removed during the pretreatment cleaning steps. Surface contaminants, as seen in the image to the left, should be mechanically removed prior to the galvanizing process. If they result in bare areas, then the repair requirements apply and small areas may be repaired, but a large area is grounds for rejection, and the entire part must be regalvanized.

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