There is a product called Ospho. It is a green liquid that is an acid that will chemically change the rust. My dad is an industrial painter and he swears by the stuff. I've used it on a lightly rusted area on my Miata and it seems to work, and I'm keeping an eye on it. If you do use it be careful. it will mar concrete and burn skin if you leave it on long enough.
Originally Posted by Sevs753
"The beatings will continue until morale improves".
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge." -Isaac Asimov