Painting Rusted Storage Shed (I Know, Been Discussed!)
I realize many people recommend Ospho followed by a primer/topcoat, but Ospho is expensive and isn't easy to find locally. I was going to default to "Rusty Metal Rustoleum" plus a topcoat, but I can only find the spray cans. This will not do as I cannot paint the roof with a spray can... I need a roller to reach across it. (And that is even problematic b/c of the 7" metal panels divided by rails, so I will have to use a trim roller I guess?)
Anyway, I went into Sherwin Williams looking for the rustoleum and the guy there swore that all I needed was two coats of "All Surface Enamel" by Sherwin Williams, applied right over the rust, and although not neutralized, it would never show through again. I asked him repeatedly if that was true, b/c I told him I did not want to have to paint the shed again in two years. He swore to me it would do the job. Anyone familiar with this paint, and do you think it will really keep the rust from showing through?