Talk to your local sherwin-william dealer about their Acrylic lacquer and they do have it,T75F18, maybe not in stock $60.00 a gal. but they can order it. you can use it as a build coat to protect your paint and the dip your baits in a automotive acrylic lacquer and they will be as tuff as anything. I know several crankbait makers and this is what they use!
just google acrylic lacquer and you will find there are many places to by it.
or go to www.tcpglobal.com and they have what you maybe needing and they have top notch service.
Jeff
RiverValleyCrankbaits