- Phthalocyanine Blue is a bright, powerful green-blue. Valued by artists for its transparency, it gives very clear washes when well diluted. PB15 is divided into distinctive commercial types. PB15 : 1, PB15 : 2, PB15 : 3 etc. There is little difference between them in chemical make up and all are equally lightfast. The colour varies slightly between the various types, some being greener than others.
- Rated 11 (very good) as a watercolour and 1 (excellent) as an oil paint, acrylic or gouache following ASTM testing. An excellent all round pigment.
- Phthalocyanne Blue is very powerful and has to be handled with some care as it will quickly influence most other colors in a mix. Non-metallic preservatives.
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