Maybe I pulled a no no, but I never had a problem like this before. I used Dupli Color primer,(on two bodies) then shot Tamiya rattle can over it. Looked OK, until later, when primer and body (styrene) lines seem to rise up through paint. Bought a second can, tried on a spoon with primer, second coat went good. Reshot bodies, again later the same thing happened. Are these destined to be stripped??