... Blue-green.Water resistant.Free of dangerous, toxic, heavy metals, radiation. Friendly to human and environment.Applicable in water based paint, plastic, resin ... pigment can be used in variety of organic mediums including plastic, rubber, paint, fiber, glass, resin, wax, ink, ... blue-purple, red, orange, etc.)2. Glow in the dark plastic products: printing photo paper, film, sheet, plate, pebble / stone ...