very lightfast

Soluble in water. When used with cement only for interior use. Do not treat with hydrochloric acid.

Color: blue, CI: PB 15:3

Chemical description: Copper phthalocyanine pigment, water dispersable pigment.
C.I. Pigment Blue 15:2

Lightfastness: Concentrated: 8, Medium: 8, Thinned: 8 (1 is poor, 8 is best).

Stable in Acid: 5, Alkali: 5, Lime: 5 (1 is poor, 5 is best).

Suitability: Acrylics, Tempera, Watercolor / Gouache, Lime / Fresco, Violin Varnish /Wooden Surfaces