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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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How to remove acid from zinc in plating

Hi, we have a jewelry plating factory in Mexico and the items are coming out with bubbles and grayish color. How can I remove the acid from the zinc?
Thank you.

Aaron Litchi
factory owner - Guadalajara, Jalisco, Mexico
January 5, 2009

Huh? Sorry, Aaron, I don't understand the question. Are you implying that the jewelry is a zinc die casting, and you believe that the porosity in the diecastings is holding acid and causing these problems?

I think that it is possible, but your question is vague. Please spend a few paragraphs describing your situation. Thanks.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
January , 2009

DEAR SIR, I JUST TO HELP YOUR PROBLEM IN ACID ZINC PLATING AS FAMILIAR TO ME AND I SHOULD ENCOUNTERED THESE BEFORE. ANYWAY I'm A TECHNICIAN IN ANY KIND OF PLATING,THE BEST THING YOU TO DO IS JUST ONLY PUT 5g PER LITER ACTIVATED CARBON AND 5g PER LITTER zinc dust ⇦ this on eBay or Amazon [affil links] .THEN YOU FILTER IN AND OUT AND BE SURE THAT THE BATH WAS TOTALLY CLEAN.AFTER THAT YOU PUT BRIGHTER BASE ON THE SUPPLIER REQUIREMENT.

LUDIVECO G PEREZ
- SHARJAH, UAE
February 20, 2009

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