I need a bucket of arc sparks
When I stripped the paint off of my hood I found a bunch of surface rust. So I went to the store and bought some naval jelly and applied it and scrubbed it with a metal brush. When I cleaned the jelly off, the rust was gone but inside of the pitting was these tiny little black spots. I then applied more naval jelly and scrubbed it again, but it did nothing. What are these little blacks spots in the pitting??? Is it more rust, or is it carbon in the steel, or could it be paint. The hood has been painted four times in the past, so could have somebody spayed paint on these rust spots at one time. I know that the naval jelly won't even affect these little black spots. Does anybody know what it is and how I can get rid of it before I spray down a coat of epoxy primer.