Feature: 1. Can be easily mixed with transparent media such as resin, silicone, polyurethane, paint, nail polish, powder coating, plastic, clay, rubber, glue, ceramic and fabric coating. 2. Convenient to make, bait, beads, nails, step stones, toys, bicycles, jewelry and rings, walkways, driveways, and floors in the dark. 3. Pigment is charged by sunlight, artificial light, ultraviolet black light, and can be used indoors and outdoors. 4. Can glow for 1 to 25 hours in a dark room, and it usually glows longer than the same fluorescent color. 5. Made of natural, non toxic, non flammable and non radioactive alkaline minerals, it can handle temperatures of about 1200°F or 600°C. Specification: Item Type: Dark Pigment Powder Net Content: 50g / 1.8in Reflective Principle: When light is irradiated on the surface of the microbeads, it is concentrated on the special reflective layer at the focus of the microbead due to the high refraction of the microbeads. The reflective layer reflects the light through the transparent microbeads to the vicinity of the light source, so at the light source Can not see very bright reflected light. Reflective material products use reflective powder (high refractive index glass beads) to plate aluminum on the rear surface as a retroreflector, which has extremely strong retroreflective performance. Scope of Application: reflective nail art, reflective film, reflective coatings, reflective signs, advertising materials, clothing materials, standard stadium track, shoes and hats, school bags, water, land and air life saving products and other new optical functional composite materials, which are the core materials for returning to reflective The characteristics and the resulting strong retroreflective effect, without the need for external power, can be widely used in roads, ports, mines, fire protection and other fields, as a warning sign, greatly improving the reliability of users.. Package List: 1 x bag of Dark Pigment Powder