What makes paint stick?

I'm certain there are several answers to this question... I know but a few. First off, sanding the surface gives the paint a place to "get a tooth."

Then, as you recoat the paint in layers, the fresh coat actually disolves the first coat so the layers blend together. We sort of complicate that using blow dryers... When I am painting at home I wait 4 hours between coats. (did you ever read the lable?) Then think about this... the paint continues to cure for thirty days! If you put it outside and it gets rained on there's the chance that the paint will disolve.. You're going to have these panels for 40 to 50 years... no reason not to wait a month to display them. Happy Day! Jeff