Summary for auxiliary anodes in acid zinc Discussion
Auxiliary anodes for acid zinc should be chosen carefully, and the thread’s key phrase is auxiliary anodes in acid zinc. Guillermo Castorena G. asked whether stainless steel, nickel-plated metal, or titanium could be used because of availability limits. Asif gave the direct recommendation: use conforming soluble zinc anodes instead. He warned that the other materials would eventually dissolve in the acid zinc bath, contaminate the electrolyte, and lead to rejects from missed plating and bath contamination. His practical advice was to inspect the zinc anodes and replace them periodically. Guillermo thanked him and did not report any disagreement, so the discussion is one clear recommendation rather than a debate.
2005
Q. Greetings,
I want to use auxiliary anodes in a zinc acid bath. I wonder what materials are recommended to use in that kind of bath. Maybe there are plenty of options, yet I have the restriction of availability. The materials I was thinking of are (in order of what is more available o easy to get to me):
Stainless steel
Nickel plated metal
Titanium
Do you have other recommendations?
Thanks four your help and advice.
Saludos,
Guillermo Castorena G.
Jobshop – San Luis Potosí, México
A. Guillermo
Use conforming soluble zinc anodes.
The other alternatives will dissolve eventually in acid zinc contaminate the bath and give you rejects due to missed plating and contaminated electrolyte.
Replace the zinc anode periodically after inspection.
Regards,

Asif Nurie [deceased]
– New Delhi, India
With deep regret we sadly advise that Asif passed away on Jan 24, 2016
2005
2005
Asif,
Thanks a lot for the advice,
Mil Gracias.
Guillermo Castorena G.
Jobshop – San Luis Potosí, México