Pigment Blue 15:3 is a transparent green shade�²-copper phthalocyanine blue with high heat resistance. C.I.Pigment Blue 15:3 is a single copper phthalocyanine , pure color shade. P.B.15:3 has better heat resistance than copper phthalocyanine, but poorer tinting strength. P.B.15:3 shows good fastness properties and dispersivity. pigment blue 15:3 is a dark blue powder. Its bright color, coloring force is strong. With excellent sun resistance, heat resistance, chemical resistance and permeability resistance. And pigment blue 15:3 is an environmentally friendly pigment.pigment blue 15:3 commonly used in ink, paint and other industrial manufacturing, can also be used for plastic, rubber products and pigment printing paste coloring.