... , incandescent,etc) and then to emit light. When ambient darkness occurs, it becomes highly visible, lasting at least 8 hours ... the strongest glow is produced during the first 30 minutes of darkness, the most critical period following a power failure or other ... glow in plasticApplication in plastic:1. This new type of luminous powder of is compatible with acrylic, polyester, epoxy, PVC, polypropylene ...