nfernandez
Bronze Member
I just bought a used 60" snowblower attachment that was kept outside by the previous owner. There is a fair amount of rust on it, but also some dull old paint. For those that have used phosphoric acid, do you just apply it to the entire surface to make sure you get all the rust spots? Then paint a primer over that? I'm not sure if you put phosphoric acid over old paint if that would cause any issues, but I don't want to miss any small rust spots. Thoughts?