I have some acrylic base glow paint that I got from: http://www.glonation.com/
Mine has glow grains that are too large to pass through an airbrush so I brush it on lures (especially jigging spoons) in several heavy coats, then topcoat with Dick Nite urethane. You can darn near read a newspaper by the light this stuff puts off. The glow is produced by charging the paint's glow grains with UV light. Even on cloudy days, there's plenty of UV to get the job done. The length of the glow varies according to the color of the glow paint - white lasts for up to 12 hours, other colors for less time. The manufacturer warns against thinning. It comes as a gel with the grains dispersed in it. If you thin it much, the grains will fall out of the paint. Also, you cannot mix glow paint with other paint since the grains will be covered and the glow will be hidden.
I have compared the glow from a spoon coated with heavy coats of acrylic glow paint to a factory-built Cabelas glow spoon which was undoubtedly spray painted. The home-painted spoon shines like a beacon in a dark room while you can just see a faint glow from the edges of the Cabelas spoon. I can't say if the bass always prefer the brighter spoon - they aren't talking - but I catch lots of largemouth, white bass, and stripers as deep as 55 ft on hand painted glow spoons. If you want it "in their face", the hand painted spoons certainly "shine" (pun intended). The more numerous and larger the glow grains are in the paint, the more glow you will get.