The product you're looking for is called Strontium Aluminate. There are many glow in the dark powders. Straight SA powder is the brightest and holds the charge longer than cheaper versions that have fillers added. Some colors are brighter than others with green being the brightest and holding a charge the longest. The consistency of high quality SA powder is similar to powdered sugar. Mix well.
The epoxy/SA mix can be used anywhere you use epoxy. I made some custom G10 scales for my Survive GSO 10 with it. I laminated a Brown G10 to a Tan G10 and used the SA/Epoxy in between the layers. Once finished, when charged in the sunlight, it has a very thin line of glow in the dark in between the slabs. Very cool and not overly bright, but adds just enough to find that knife in the dark if needed. Hope this helps. The pic doesn't show it glowing but you ge tthe idea.
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