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Info on blue passivation
I want to know if possible, which kind of trivalent chromium salt is used in acid zinc blue passivation treatment. Especially used by Glomax and Macdermid.
Macdermid and the supplier of Glomax will have tech data sheets and material safety data sheets that tell you as much as they wish to reveal, and we cannot go beyond that. For more generic information about blue chromating you could do a literature search.
Ted Mooney, P.E.
Pine Beach, New Jersey
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