I'm finally getting ready to paint my Smith Miniplane. It's been sitting for nearly 2 years due some family issues but now I'm ready to finish the painting. (Plastic parts are painted)It is covered with Koverall and sealed with Minwax Poly-Crylic. I an going to use Rustoleum paint from a rattle can and the overcoat that with Nelsons PU. What should I use to effectively clean this surface before painting? It isn't particularly dirty. It's just been sitting forquite a spell.
Any input would be appreciated