Depending on use and sun exposure, light fastness on some colors will be limited. The glow effect continues even if color fades. The KG-00 is the primary color and will provide the best glow and color retention when applied over a white base. Use KG-01 through KG-07 with discretion-even though the color may change with time and exposure, the Glow-in-the-Dark feature remains for a long time. Kosmic-Glo is not recommended for overall refinishing.