Montana NIGHTGLOW is a high-grade acrylic quality which contains luminescence-pigments, that store light (absorbed energy) and emit the light in darkness. This luminiscence-effect is only visible at total darkness. The period is depending on intensity or irradation and thickness of paint layer (it is recommended to apply multiple layers of NIGHTGLOW paint lacquer on the primed surface). The highest possible degree of shining is immediately after loading the painted object then it fades away. For indoors and outdoors applications.