I hane painted my outboard and purchased decals on ebay. Perhaps the decals are old but they are not sticking very well. The surface was well prepared but they are peeling off. They were hard to find so that I need to make sure they stick and do not fly off as they were trying to do yesterday while out on my boat. Any suggestions on what type of glue would be best used to make them stick.? Should I spray a clearcoat on them afterward to help them out? Appreciate your suggestions.