The pigment and paint samples used in this study were described in the Part I of this series of articles. The pigment samples consisted of 98 organic pigments and one inorganic red pigment (PR104) found in some automotive paint samples analysed. These pigments were categorised by their generic name and chemical constitution according to the Colour Index (C.I.). The selection of automotive paints was composed of 27 light red, 27 dark red and five red metallic samples.