A pearlescent pigment comprises (a) synthetic mica substrate, (b) calcined ferrite coating on the substrate, and (c) an outer layer or treatment wherein said outer layer or treatment was added to the calcined ferrite coated synthetic mica in water.The pearlescent pigment may be used in exterior applications such as automotive paint systems.
This patent application claims priority to U.S. provisional patent application Ser. 60/820,099 filed Jul. 21, 2006 and 60/829,018 filed Oct. 11, 2006 incorporated herein by reference in their entireties.