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Old 12-29-2005, 12:01 PM
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jimcarry jimcarry is offline
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Default Re: DULL GREY COATING

Quote:
Originally Posted by Soundsurgeon
I have exactly the same. I am investigating this - watch this space( hopefully!). I have plated 1 small brass part as an experiment with success first time. I then drained the tank etc, stored the solution for a few weeks. Started plating again - grey deposit.
1, Dropped temperature 10 F - no change.
2, Decreased plating current density to 50% - no change.

Next I will try:
Check solution concentration.
Check PH.
Check for Zinc Ions in the solution (I have a chemist friend who would love to mess with this).
Dummy plate to remove contaminants - problem with this is I cannot download anything other than the area calculator from the download site..

Bye fo now.
Question
What size kit are you using
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