... finish system. hemical, Matting agent, coating additive Characteristics of SA(L) series high-grade matting agetnCertification: ISO ISO9001 ,ROHS,SGS(2011 ... fine dispersion Good transparency: The purity of SiO2 in SA SERIES high-grade delusterant powder reaches 99.3%, and ... the process of storing coatings. Good hand feeling:As SA SERIES high-grade delusterant powder has very narrow distribution of ...