Herter's (Cabelas now) makes good decoy paint. I would stay away from spraying decoys with polyurethane or any thing shiny. ArmorAll also make the decoys too shiny. Trust me. I retouch my decoys before every season and they look great. Sometimes you have to sand them down with some very fine grit sand paper which makes the paint stick better. This has worked for me in the past. Hope this helps.