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"The correct finish process of Zamac 3 Chromate conversion coating"



2005

Hello :

Product material : Zamac 3
Product Finish : Chromate conversion coating Olive Drab

My understanding of the finish process is that it should be Zinc plating first and then followed by Chromate conversion coating, but someone told me this finish does not include the Zinc plating at the beginning.

I just want to know the correct plating process for Zamac 3. Is this a suitable finish for Zamac 3 ? If not, what is the right finish ?

I will greatly appreciate if anyone can help me to get the answer.

Thanks very much.

Richard Lee
- LA, California
^


2005

Hello Mr Richard Lee,


Zamac 3 does not chromate well with Triavalent Chromates directly, although it does resonably well with the Hexavalent Chromates. Its much better if you zinc plate before you triavalent chromate.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind
supporting advertiser
Bengaluru, Karnataka, India

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