Pigment Black 28 is widely used in ceramic,enamels color,coil coatings,long effect coatings,engineering plastics, etc Pigment Black 28 (Copper Chromite Black Spinel ) is a Copper Chromite Black Pigment. It has excellent chemical resistance, outdoor durability, light-fastness, heat stability and is non-bleeding and non migratory. Suggested applications include RPVC, Polyolefins, Engineering Resins ...