-- The Home Page of the Finishing Industry
23+ years of serious education, promoting Aloha,
& the most fun you can have in metal finishing smiley
    no popups, no spam
on this site
current topics
topic 8638

Adhesion Quality of The Chrome Layer


Hello there,

I want to ask if it is possible to use lacquer on zinc plated/yellow chromatized parts. Those parts weren't post-treated after the chromatizing process, my question is: can I paint them with the lacquer? and if I did, how good the adhesion quality I will get?. Is it preferred to use the lacquer on the zinc layer directly? The bath used in zinc plating is an acidic bath.

Thank you.

Abdullah Ali
- Jeddah, Saudi Arabia


I think a lacquer will adhere well to your zinc yellow plating. It will probably be best to try putting the lacquer on after the chromate. The chromate helps extend the life of the plating and does promote adhesion in most cases.

You should contact a chemical vendor that sells lacquers. These vendors should have technical expertise with their product and will be able to tell you if they think it will work. You can probably get some free testing done to see if it will work.

tim neveau
Tim Neveau
Rochester Hills, Michigan

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, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.