Ultramarine Blue (C.I.PB 29,acid blue 29) Min.order: 25kgs Usage: used in painting, printing ink, rubber, dyeing, etc Technical ... fastness to lightNo migratory.Safety and innocuous.APPLICATIONS:Usage: used in painting, printing ink, rubber, dyeing, etc.Ultramarine Blue is ... matter, alkali, heat, light, sub-angle fade acids, insoluble in water.To mention the white areas: for paint, knitting industry ...