Rattle can paint takes a long time to "dry". It may be touchable in an hour but will still be soft for a while (like days/weeks). Stuff like rubbing alcohol can soften and wipe off fresh paint even days later. Thin coats and following the recoat times which are on the can and usually a few minutes to 1 hour and then not again for 24-48 hours. That will make sure all layers can dry good, example.. Example.. you don't want to put clear over paint too early, the underlying paint will never fully cure correctly. Mr personally.. I use matt/flat paint if I am putting a gloss coat on top. Using a gloss paint requires more work to scuff up before putting a gloss coat anyway. Either use gloss paint and be done with it or flat and put a gloss coat on top.