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Limits on trivalent contamination of hard chrome?

adv.

September 11, 2008

Gentleman,
How high will you the trivalent hard chromium go to before you oxidize it to hexavalent. Myself, I say not more than 1,5 g /l.

I think the trivalent chromium is the reason for macro cracks, directly after the plating in different stage.

Are any of you working with "Purospot" and how successful is that? I'd like to know more about porous pots.

Best regards,

Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika,
Sweden

adv.

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