BLUE 15:3 Phthalocyanine Pigment Blue 15:3, Beta Blue Application : Pigments for Paints, Pigments for Textiles, Pigments for Printing Inks, Pigments for Plastics. Heat Fastness :210�¢?? for 10 min for Blue 15.3 Grit Content : 100ppm max. Oil Absorption(ml/100gm) : 40 + 2