Cobalt blue powder, tone is bright and vivid Coloring of PS,PC,ABS,plexiglass,HPVC,acetate fiber,raw pulp of Polyester Fiber ... and reference dosageDensity(g/cm3)Melting point()Light fastness(in PS)Reference dosageTransparentOpaque0.311676-70.0250.05Light fastness: Grade 1-8 ... , Grade 8: Excellent Grade 1:BadThe heat resistance in PS can get 260.The deapth of coloring:0.05% dye ...