Regular paint will not stick to bare metal, there are some products that claim can be sprayed on bare metal but never used them in automotive stuff, the color (paint) can be sprayed on the etching primer if you are looking for a smooth finish several coats of sanding primer and block sanding will work, most automotive paint will require a sealer/primer coat then color and so on, your floor pan bare metal needs self etching primer then several coats of paint, you want the paint kind of thick, carpet moves around and wears on the paint although it takes years.
Oh, and let it dry for a couple days or more before carpeting.
this will NOT be included on today's test.
Class dismissed