Caso - sorry, I should have supplied more information, I'm using Matrix Systems Epoxy Black Primer MP-900 and Epoxy Activator Mav-420 so it is a 2 part epoxy primer that I got from a local Body Shop Supply Store. This may be a product that you are not familar with. Over the years I've painted 3 different cars using laquer primer and acrylic enamel and experienced no issues but I plan to keep the truck until my days are over. Maybe I'll just phospho treat the areas where I have to go to bare metal and use laquer based primer. I've never used phospho before. Any suggestions ?
