-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

topic 10435

Corrosion coating for AZ91D


I'm looking for a coating for Mg AZ91D that has low electrical resistivity and high corrosion resistance to high temperature and humidity environments (such as automotive).

Del Doty
- Carlsbad, California, USA


I suppose it would need to be, in the deposited metals category, a plating of some kind, say, electroless nickel, or one of the zinc alloys.

What do you mean by low electrical resistance, and high corrosion, high temperature, etc.

Is this for under hood, under chassis, exhaust manifold?

Best regards,

tom pullizzi monitor
Tom Pullizzi
Falls Township,



In reply to your inquiry...

Low electrical resistance: Not exactly sure, but probably on the order of 1 milliohm or less.

High Temp: 100C

High Humidity: say 85% RH

Application: Exposed to all climates (land, not marine). Physically shielded from outdoor elements, but not sealed or guaranteed to avoid occasional immersion in various resevoirs (sea, lake, river, etc.).

Del Doty
- Carlsbad, California

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2017     -    Privacy Policy
How Google uses data when you visit this site.