I am also a fan of POR-15 products but have found Rust-Oleum Hammered to be a very good product at much less cost. Several colors are stocked at our local Lowe's and Home Depot. I painted a utility trailer with this a year ago and have been impressed with the way it has held up. This is not your typical Rust-Oleum product with the slow drying time. I believe that it is the same product that I purchased years ago that was called Hammertite or some such name. I have only used the brush on variety but they also have it in spray cans.