I am not familiar with GLOW-ON so I can not comment on their product but I just came back from visiting my firearms coating vendor in Texas and they are soon to release a glow in the dark sight paint. I got to see the sample product and was amazed how good it was, it was easily as bright as the tritium sights I have on some of my firearms if not brighter. I don't have a release date for the product yet but I suspect it is not far away. I will add it to my web site once available and post about it on FB and here on CGN.
Regards,