on occasion i've found that for some reason or other Micro Sol wasn't snuggleing the decal down to an irregular surface............(presuming that's your dilema)......... so some of my model railroad pals recommended Champ decal sol...............& bingo...........no interaction with the painted or gloss coated surface.......let it set over nite and a "painted on" marking the next morning.
unfortunately i know not where to get more other than a model railroad shop, Woodbeck but, the stuff does work and if that won't then Solveset......that stuff will make cardboard conform.......use with caution.
good luck to ya.....