ONE THAT COMES IN A PACKAGING THAT IS INNOVATIVE, ELEGANT, HANDY AND FEELS RIGHT.

Phthalo Blues are pure and clean primary blues with superior covering power. They have a very high tinting strength and tend to overwhelm other pigments, but they make predictable mixed colours if colour strength can be controlled. Phthalo Blue quickly tends towards green when mixed with different colours or if chlorine is added. When using alone, mix with some white, as Phthalo Blue can be semi-transparent and almost black on its own. Phthalo Blue is a good colour for glazing.

COMPOSITION AND PERMANENCE

Pigment Combination: PB15-Phthalo Blue

PIGMENT NAME: PB15-PHTHALO BLUE

Pigment Type: Organic

Chemical Name: Copper phthalocyanine

Properties

Phthalo Blues are pure and clean primary blues with superior covering power. They have a very high tinting strength and tend to overwhelm other pigments, but they make predictable mixed colours if colour strength can be controlled. In oil form, blues are intense and slow drying. When mixed with other colours or added chlorine, Phthalo Blue quickly tends towards green.

When using alone, mix with some white, as Phthalo Blue can be semi-transparent and almost black on its own. It is among the most compatible modern colours with mineral colours and is considered more reliable than Prussian Blue while sharing the same physical and colour properties. Phthalo Blue is a good colour for glazing.

Permanence

Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. Due to their stability, they are currently used in inks, coatings, and many plastics and are considered a standard pigment in printing ink and the packaging industry.

Toxicity

Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).

History

Developed by chemists using the trade name Monastral Blue, the organic blue dyestuff is now known as Phthalo Blue, was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark colour was observed in a kettle where a dye was being made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted cyan to replace Prussian Blue.