I think you have the key to the whole thing there Shawn, "applied very thick". The problem with the rattle can is it is VERY thin ( viscous) with little body and a few coats may not give you the film build you need. ALSO, on the edges and stuff, it is VERY easy to apply a coat and it LOOKS like it is covered well but it is so thin there is no protection.

All I know is, if you are going to strip it anyway and prime it properly after driving it around a few months this is all a moot point anyway. A few months in bare metal wouldn't be a big deal if you plan on doing it up anyway.

Brian