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

-----

Compare corrosion resistance of "Zinc Plate" and "Yellow Zinc Plate"

As a supplier of industrial parts, corrosion resistance is often questioned relative to standard Zinc Plating vs. Yellow Zinc Plating as usually found on the Higher (grade 8) series of fasteners. Is one superior for exterior applications?

CJ Jons
Industrial products distributor - St. Paul, MN, USA
2007

What 'yellow zinc' means is simply that the chromate conversion coating on the zinc plating is yellow instead of clear. In the days before RoHS, yellow offered greater corrosion protection before white rust; but now color doesn't mean much. Zinc plating with yellow chromate or any other color really isn't thick enough to offer protection for long term exterior applications. For that you need galvanized fasteners.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2007

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: