I managed to scrape wet alclad with my finger while airbrushing

Then I succeeded trying to solve the error by applying too much alclad

Then I tried to rub off the excess

Result: extremily ugly surface!!!!


Does anybody know how to address this. I thought of using 3600 grain to rubb of the dry alcad, where needed repair the black undercoat and then spray some new alclad.

Does anybody have abetter idea?