finishing.com -- The Home Page of the Finishing Industry
We've been doing this for 23+ years.
When's our turn to go viral? smiley
    no popups, no spam
HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
topic 10746

Decorative Plating Problem


 

Gentlemen,

I have been in the decorative plating business for quite a few years, bumpers and jobbing. I do have considerable knowledge and experience polishing and plating. I was just recently hired to do bumpers at a shop that has been doing jobing. The tanks are more than adequate to handle bumpers. But the problem that I have here is that they are using a brass strike before going into the acid copper. I know that brass is a cyanide based solution. I have been so used to a cyanide copper strike. The problem we are having is blistering. The bumpers look great before buffing, but when I start buffing the blisters start jumping out at you. One or two blisters creates a bumper that has to be reworked again.

Question, is this because of the brass strike.

Thanks,

Donald V. Dacy
- Stockton, California, USA


 

I've never heard of using a brass strike before acid copper plating and, personally, I'd suspect it as being the culprit until someone authoritatively tells you otherwise.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey


 

Just a thought - you are loading 'live'. (i.e., put the power to the approx. voltage and put a fly lead (we use car jump leads) to the job before it hits the solution).

Martin Trigg-Hogarth
Martin Trigg-Hogarth
surface treatment shop - Stroud, Glos, England



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2018 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.