No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Removal of Chemical Conversion Coating from ZAMAC

Hi there, I'm trying to remove a conversion coating (CrVI-free) from Zamac. So far I have used caustic degreaser, but either the CCC wasn't removed properly or the Zamac was affected negatively as when I did another conversion coating on the same piece, the corrosion protection was very low.
I hope any of you has a good idea.

Philipp Ebner
product manager - Vienna, Austria
July 12, 2011

Zinc is highly sensitive to caustics and most acids in any appreciable concentration. If your chemical suppliers cannot help you with specific CC strippers maybe sand or glass bead blasting could do the job.
Guillermo Marrufo-Mexico

Guillermo Marrufo
Monterrey, NL, Mexico
July 19, 2011

adv.
Difficult Diecastings? Contact the best diecastings plater in the world

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

Disclaimer: It's not possible to fully 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 might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: