Viewing the end use of these spray paints, the group of six paints (samples 004,010,015,017,021 and 026) and the pair 005-023 are household, while the pairs 006-008 and 038-040 are for automotive use. Of the pair 028-035, paint 028 is a household one and 035 an automotive one: this indicates that the end use of spray paint does not always constitute a good criterion for the classification of spray paints. This can also be observed when considering only the FTIR results. In fact, the group of the paints 027, 028, 030, 034, 035 and 037 (undifferentiated by FTIR) is composed of four household and two automotive spray paints. The Raman results also show that identical pigments can be used either for automotive or household spray paints. The only
exception is Pigment Yellow 74 which was only detected in eight household spray paints.
Viewing the end use of these spray paints, the group of six paints (samples 004,010,015,017,021 and 026) and the pair 005-023 are household, while the pairs 006-008 and 038-040 are for automotive use. Of the pair 028-035, paint 028 is a household one and 035 an automotive one: this indicates that the end use of spray paint does not always constitute a good criterion for the classification of spray paints. This can also be observed when considering only the FTIR results. In fact, the group of the paints 027, 028, 030, 034, 035 and 037 (undifferentiated by FTIR) is composed of four household and two automotive spray paints. The Raman results also show that identical pigments can be used either for automotive or household spray paints. The onlyexception is Pigment Yellow 74 which was only detected in eight household spray paints.
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