No passwords, no registration, no paywalls, no popups

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

-----

Pitting on Zinc Plated Steel

March 27, 2012

Q. We are alkaline Zinc plating 12L14 steel. We are plating both small and large parts which contain both a machined and as-is surface which is very porous. We are experiencing rust pitting on the rough surface after plating and passivate but only on the larger parts.
Any ideas on what we can do to solve this issue.
Thank you.

Dan Rose
Plating shop owner - Oceanside, California, USA

A dip in a diluted fluoboric acid is a must as the base material contains lead.

Sara Michaeli
Tel-Aviv-Yafo, Israel
April 2, 2012

Sorry! Finishing.com is temporarily Read-Only.
Please maintain your bookmarks! Although Ted Mooney is retiring, finishing.com is not!
It will have a new owner/curator very shortly!

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: