It was on a flat area of the hood that appeared to have some pretty bad etching. I am not sure if it had something spilled on that area or what but I suspect it was already very thin. I used the same technique on the entire car without issue except that on area on the hood.
I have a Jet Black BMW that I have performed a total paint correction on. Done a three stage process M105--M205--SF4500 topped with blackfir wet diamonds sealant (2 coats 12 hours cure time between coats) then topped with a blackfire midnight sun paste wax. Car looked great!!! Drove to work and...