Check out my flickr site. I did my frame with POR15 on the weekend. It had it pretty darn clean with wire brushes and steel wool and marine clean first. Then I used the metal ready which turned the whole thing white. Once I rinsed off the metal ready, the surface all rusted on it. I put on 2 coats of POR15 and it turned out fantastic. I have purchased more POR15 to do other parts now. I am very satisfied with the results.