Two steps forward, one step back. Two months ago, after I painted the interior, I noticed that the paint in some some areas, notably the spar and forward floor, appeared to have some adhesion problems. I decided to wait a bit and let the paint cure fully before making judgements about it. Today, I ran my fingernail firmly along the spar and managed to remove a strip of paint and primer, right down to the bare, anodized metal. Not good! I was able to do the same on a few areas of the floorboard, right where my feet will go. Also not good.
So, out came the masking paper and tape. I masked off the offending area and completely stripped it using Aircraft Remover, plastic spatulas, and lots of paper towels. I'll have to go back and touch up the stripped area with acetone, but for now, I got most of it.
Now I just have to figure out why the primer and paint didn't adhere properly in certain areas, and find out what to do to make it work correctly next time.