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Ted Mooney, P.E. RET
Pine Beach, NJ

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Color Trivalent

Has there been any advancements is color trivalent chromates. (Yellow, Green & Black)

Galen Gile
- Bowling Green, Kentucky
2002

Unfortunatley, the only advancements have been in the methods and materials used to dye clear/blue trivalents to colors. I am yet to see a product with is yellow or another color, contains trivalent chromium compounds and is anything but clear or blue! Some were claimed to be but on testing were found to periodically contain some hex.

Gene Packman
process supplier - Great Neck, New York
2002

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