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

HomeFAQsBooksHelpWantedAdvertiseForum
topic 11536

Plating/Coating Chemistry


 

Where can I find the chemical composition of various platings and coatings; for instance, zinc phosphate, iron manganese phosphate, zinc with yellow dichromate, etc. I have to report the percentage of each element to a customers materials database. Thanks.

Jeff Colbert
Dana Corp - Fort Wayne, Indiana


 

This question comes up once in a blue moon, and to do a good job, you will need some basic texts with a chapter on each coating or group of coatings.

It also doesn't hurt to search the literature for relevant articles which often have this kind of information.

Also, you will need the MSDS of each chemical used in your process, for instance, if your yellow chromate has chromic acid, sulfates, and nitrates in the formulation, then you will see that the gel usually contains some of all of these, plus trivalent chromium from the reaction with the zinc metal that is being treated, etc. (some of these have trace amounts of fluoride, it depends on how detailed you want to get). The more stuff you say is in your coating, the more questions you will get from your customer. It could get very tricky, I don't envy you. See if you can get someone else to do it, but I am afraid you are it.

It will take you a few hours to a few weeks to do a decent job.

Good luck,

tom pullizzi portrait
Tom Pullizzi
Falls Township, Pennsylvania



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 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.