I've used this to paint over my rusty hitch receiver.  The paint they use on them is thick, but water gets behind it and it flakes off and looks bad in a pretty short amount of time.  I bought this paint which is much thinner to see if it'll adhere better and look good for a longer amount of time.  I'm also using it to touch up anything that's rusty that used to be black.  Motorcycle frames, car starter motor covers, etc...  A tiny can goes a long way if you can find a way to keep it sealed from air.  I use a plastic bag between the lid and the can when I re-seal it because it'll glue itself into place otherwise.  Don't paint your skin with this unless you want a black spot on yourself for two weeks.  It doesn't come off with acetone or a scrub brush the next morning if you go to bed with it on yourself.