Fluorescent powder that glows in the dark Glow in the Dark - MIND TURQUOISE Green Stuff World 2409 Glow-in-the-dark fluorescent powder is able to collect light energy and store it for a while, causing it to glow on its own for hours, even when the light source is turned off. The maximum glow lasts for 20-30 minutes, after which the energy gradually fades. The process of absorbing light energy can be achieved by simple exposure to light. Ultraviolet light has the ability to greatly overload this dust. These are phosphorescent powders that can be mixed with various acrylic and non-acrylic mounting media. We recommend using them in combination with Master Medium, paints, varnishes or UV resin to keep them stable. These luminescent pigments can also be mixed with fluorine-containing pigments to enhance daytime color. The light intensity will decrease as more fluorine-containing pigments are added. These powders are non-toxic, but inhalation should be avoided. Contents: 1 bottle of 30 ml