73 Duster Restoration

Picked a gallon of Evaporust yesterday. Im trying to do something with the rust on the roof and trunk lid without grinding the crap of it. My plan was to spray the evaporust on the roof and cover it with plastic to keep it from evaporating over night. Didnt work, LOL

Rust 3, Adam 0. So far Ive tried 80 grit DA disc which work but are taking for ever. Then I tried some SEM Rustmort which is a converter. That worked ok but made a mess and etched the crap out of any clean metal it touched (full of acid) The Evaporust did seem to do anything over night except flash rust anything it dripped on.

So some 36 grit grinding disc and 40 grit DA disc are on deck.