We have recently installed a New Powder Coating Plant with the process of Iron Phosphating. I need some templates to adopt in my plant to keep the Quality records updated.
It has links to .pdf's that should give you a good idea of what to include in Quality Control charts. The articles you would probably be most interested in are
Electrostatic Spray Processes
Joel Rupp, Eric Guffey and Gary Jacobsen
[Online Article] [Full text] (PDF 1.7 Mb)
If you are not familiar with Products Finishing magazine, I highly recommend it. It is available as free subscription, which you can request from their website: