Barium Sulfate (BaSO₄) Coating Powder is an optical-grade white powder used in professional laser and light system components. It features diffuse reflectance characteristics with stability across the UV-A to NIR wavelength range (300–1200 nm). This coating supports applications such as integrating spheres, lamp housings, and reflective chambers. It can be applied by spraying on compatible substrates like metal, plastic, and glass, and is thermally stable up to 100°C. This material is intended for use by qualified personnel in controlled environments requiring high reflectance between 95–98%.