That's exactly how it came off. In sheet like fashion. Definitely not cool. Maybe those areas were too clean, as in no rust had been there before? IDK I stripped all the loose stuff this morning.

When I did the rear of the frame, the frame had a lot of pitting so I spot blasted it. Then I used etch primer, then the por, then raptor liner. None of that was loose when I scuffed it with 80 grit to prep for the raptor liner. These new bare spots up front will not get the por. I'll use the etch primer, sealer, then urethane paint. I'm over this project.