When I painted my frame I used Rustolium semi-gloss black over clean bare steel and it worked fantastically. Stuck real good. Dried nice and hard. And looked pretty good too.
So I decided to use the same paint on my fender aprons, core support, and gastank too.
In my famous effort to overdoo pretty much everything I do I cleaned and shot sandable laquer primer over everything. Sanded them down, cleaned them again, then shot the black and let it dry.
The next day it looked pretty good and the paint was dry but seemed like it was gummy underneath.
You could scratch it off with your nail and it would be gooey. Like it was dry but it wasn't really dry.
Well, that ain't gonna work. If the paint is so fragile you could scratch it off with your nail Id hate to imagine what it would look like after a few month on the truck. So it all has to be sanded down and re-done.
(Just the core support and aprons) I even tried letting them sit out in the sun all day to "bake" the paint on but it made no difference.
The only thing I can think of that I did wrong was prime the parts first with a laquer primer.
I've never had a problem with enamel over laquer before but apparently the Rustolium enamel didn't like the primer.
