I had a ton of surface rust on my roof when I got my car, it had a vinyl top originally but that was long gone.
I have my roof sanded down to the black rust now, and I want to figure out a way to treat it before epoxy prime. It's still pretty solid and straight...sand a little pitting but I should be able to prime and wetsand the pits out.
I am trying evoporust right now and it doesn't seem to be working as good as they claim it to be. I'm soaking the roof overnight with towels and saran wrap per evaporust suggestions so we'll see. Personally this stuff kind of sucks.
I'm looking at a product called rust-mort by sem.....how do you apply this and does it work pretty fast? Does it remove the rust or "convert" it?
Will I need to sand after application before prime or would I need to rinse it off and dry the roof first?
Just need a good solid way to do this....I did sandblast a little but I'm wasting a lot of sandblast....went through 7-8 50lb bags and didn't even knock a dent in it