Originally Posted by
Aaron Novak
Tom,
Yes, you can. It is done every day in production of OEM auto and marine parts. Steel parts commonly get a phosphate conversion, some form of epoxy primer (Liquid or EDP preferred), and powder topcoat. Aluminum and mag get a chromate conversion ( or other ), epoxy prime (preferably with strontium chromate i.e. stitts), and powder topcoat. The only times I have not seen a primer used, is in those DIY kits sold by eastwood, PBTP and such. They market and sell it without understanding the process, and do a great deal of disservice to the customers. The biggest pitfall of using powder incorrectly is how to remove it when it fails.