Let me just say that you should really stay with one system. Spraying one brand over another is risky.


Are you doing gloss or matte finish?

In my experience a strong (catalyzed polyurethane) clear can melt a weak undercoat (like plane jane enamel model paint, testors for instance). In any case try your combination.

To me there is so much work involved by the time you are laying down clear you want as close to zero potential problems as your wallet will allow.