... by rare earth. It has the ability to emit light for 6-38 hours after 10-20 minutes absorbance of ... into various transparent medium, such as paint, plastic, printing paste, resin or glass to achieve self-emitting results while retaining original ... lightings, signs and indicators, and for decorations. Application Fields:Applied in ink, paints, apparel, watches, switches, signs, fishing, gears, vehicles, ...