My fuel tank ribs (2024-T3 ALCLAD) seem to have some kind of contamination on the surface - it doesn’t come off with acetone. These have been sitting on a shelf in a dry room (50-60% humidity). The leading edge ribs were sitting right next to these and didn’t have any contamination.
Has anyone else seen this before?
I think I’m going to have to use Alumiprep and a scotchbrite pad and clean these before I begin assembly - but not so hard to remove all the Alclad.
Has anyone else seen this before?
I think I’m going to have to use Alumiprep and a scotchbrite pad and clean these before I begin assembly - but not so hard to remove all the Alclad.