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

-----

Electrical insulating coating for Zinc Z8

My company is making small optical modules die-cast from Zinc Z8. Prototypes were anodized aluminum (machined). We have found no coating yet for zinc Z8 which is electrically insulating (>1Mohm), >1000V breakdown voltage, and resistant to scratching during assembly. Part is <20mm long, light and protected from external contact in final assembly, coating need not be rugged. Can you suggest possible coatings (we tried chromate and nickel with little success).

Pat O'Connor
- San Jose, California, USA
2003

There is no finish similar to anodizing for this purpose. You will need to go to an appropriate nonconducting film such as teflon.

James Watts
- Navarre, Florida
2003

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: