Glow in the Dark powder can be mixed with anything from clear paint to wax, epoxy, resin, acrylic, glass, gels, slime, glue, gel candles, lacquer, plastic dip, masonry sealers, plastics, clay, rubber, alcohol, solvent, nail polish. The possibilities are endless. It can be recharged a million of times sunlight or indoor lighting. Great chemistry gift, Great for fun science experiments. Glow in the Dark powders are doped the rare earth mineral europium for the ultimate glow. This is a high-quality powder No UV or Black light needed. Safe, non-toxic and odourless. Do not ingest or inhale.