Powders are compounded in various natural colors to blend with diverse object backgrounds to reduce visual detection. The chart below lists the powder?s natural color, the color it fluoresces, and what applications to use each for. Good adhesion properties aid in target-to-hand, body or clothing contact. Apply a light dusting to the target object with a soft bristle brush. Highly fluorescent when exposed to longwave ultraviolet radiation using any SIRCHIE? longwave (UV) light source. Packaged in 2 oz. volume containers.?UV204 Natural color black – fluoresces brilliant green.