I'm currently in process for spraying clear coat on my video game controllers to preserve the paint I've laid down, and I'm having a heckuva time trying to find one that will work solidly for me. I've tried Krylon's Acrylic Clear aerosol spray, and it seems to just dry tacky. It's been 2 weeks since I last laid down a clear coat over my acrylic, and when I handle it, I'm noticing fingerprints being pushed into the paint. I thought originally it was just naturally occurring oils, like what you'd see if you were to pick up a clean glass, you get a fingerprint on the glass. However, on this, I'm noticing that my clear coat is soft, and pressure from my thumb or fingers is leaving the ridges of my prints in the clear coat itself. I'd sprayed the clear over Testor's Aztek airbrush paints that I'd let dry for anywhere from 12-24 hours, and have done multiple light coats of the clear on the controller to get that "wet gloss" look, but it's still seeming really soft. Do I need to try something else, and if so, are there any recommendations to get it to set and harden to something that won't pick up my prints if I push down on the paint? Should I go with some light heat from a heat gun, or what?