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

-----

Zinc nickel on a grey iron substrate ?

Anybody knows if it would be possible to apply a zinc nickel coating in a grey iron component, for instance a brake caliper.

Alfonso Bustos Garcia
- Valladolid

The question, I believe, is about the hydrogen overvoltage of the carbon particles in the cast iron. In zinc cyanide and probably alkaline non-cyanide zinc, the overvoltage is low, so hydrogen is reduced on the metal instead of zinc metal.

Practical acid zinc plating solutions solved this problem. So I suppose that an acid zinc-nickel solution would be all right. I don't have a reference for this, so please check in with an answer if you have one.

Tom Pullizzi
Falls Township, Pennsylvania

adv.
this text gets replaced with bannerText

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: