I do plan on using por-15 on the underside of the floor and inside the corner. I'm just worried about the seams all over the truck and not being able to wash away the residue before I por-15 it. It looks to me like the marine clean and metal ready prep stuff is a lot thinner than the por-15 and I wonder if it will penetrate and therefor protect all the way into the seams?thanks


pictures below
https://picasaweb.google.com/111413431667404132006
Jim D - '48 GMC 1ton pickup