Hi, I just painstakingly torn down and repainted a small Evinrude 6hp. I used BRP touch up paint P/N 777174 The motor look nice. I want to clear-coat it. I'm scared of paint re-action. I have 3 test plates i made and the first one bubble up using acrylic lacquer. What should I try next clear polyurethane? Thanks, any help appreciated.