Originally Posted by The_Knave
you mention you bought the SuperLuminova "some time ago". what's the shelf life on the stuff and is there any special storage requirements other then a dark, sealed container (cool storage, etc.)? Reason I ask is because this sounds like a doable project, but I'd hate to spend that kind of cash on something that's 10 years old and useless. As to having extra left over, I have a couple of older dive watches that the luminosity has waned over the years and I'd like to have them touched back up. Also, what adhesive did you use?
Well, I hit the wrong "quote" button -- your answer about shelf life is below... :-)
If you don't know what you're doing, I'd suggest NOT opening up your dive watches yourself. Touching up hands can be done IF you have the proper equipment (they should be masked off and THEN painted), but I'd be more cautious about opening the case without having the correct gasket available. Whenever a dive watch is opened, the o-ring or flat-ring MUST be replaced. Otherwise, watertight integrity is lost -- and a dive watch suddenly becomes a no-dive watch.
Nail polish, as well as other clear coats, don't work for this: they don't "take" a "foreign" powder-based pigment properly.
Another thing you should be aware of: the adhesive you use MUST be heat/cold resistant as well as extremely shockproof. The heat generated when the weapon is fired causes the plastic front sight to expand slightly. If the adhesive is too brittle or too sensitive to heat, the "dot" will fall out of the front sight.
Unfortunately, UV-curable watchmaking adhesives are completely unsuitable for this task. Once cured by UV, they become UV-opaque and thus won't allow the SL to charge.
I experimented for a while, and it turned out that some old Duco cement worked the best. It took time to cure, but it's got all the right properties. I'm experimenting with E6000: it seems to be much better than Duco at "gripping" the vinyl.
(Yes, I have plenty of SL to experiment with. Each trial takes no more than the same amount of SL: a tiny bit that fits on the wide part of a small toothpick.)