IMO Tony this is some great lume. When I first received it they wouldn't send it out of the US due to a patent or something but now they will ship world wide. Here is a shot of my first lume work after just one practice dial.......Only bubbles I got were with the watchlume.com bonding agent. As for glows for hours that is 'not' the case with the Bergeon stuff which we are talking 30 minutes or less! Sounds like that's worth a try!