The authoritative public forum
  for Metal Finishing since 1989
-----

What material should be used for auxiliary anodes in acid zinc?

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