I don't agree with Primera about clear coat over decals.
I'm using auto clear coat and I never had problems. Finish is great and can't notice that decals are on cars.
I heard problems with puting Tamiya clear coat sprays over decals, but on this way there is no problem.
Here is one photo of my Pug with clear coat over decals:
http://files.automotiveforums.com/up...98P6170004.jpg