R&F Encaustic Paint Block - Phthalo Green, 40 ml

It is very powerful and deep and can look blacker than black in line work. The vivid undertone can be a bit harsh. It has an excellent glaze colour.

• Pigment Composition: PG7-Phthalo Green
• Paint Lines: Encaustic Pigment Stick
• Opacity: Transparent
• Pigment Stick Drying Rate: Medium
• Classification: Synthetic Inorganic
• Chemical Composition: Chlorinated copper phthalocyanine
• Safety Information: Conforms to ASTM D-4236

Pigment Name: PG7-Phthalo Green

Classification: Synthetic Organic

Chemical Composition: Polychlorinated copper (II) phthalocyanine

Properties

Phthalo Green is a transparent, cool, bright, high-intensity colour used in oil and acrylics. It comes from a Phthalocyanine Blue pigment where most of the hydrogen atoms have been replaced with chlorine, forming highly stable molecules. It has pigment properties and permanence similar to Phthalo Blue. It is slow drying and an excellent base colour for mixing a range of bright greens. Phthalo Green is considered a very good alternative to Viridian because it is intense and, mixes well and can be used to emphasize mineral colours in various tints. However, its tinting strength is very high so that it can overpower other colours. This pigment most closely resembles the discontinued and toxic Verdigris.

Permanence

Phthalo Greens are completely lightfast and resistant to alkali, acids, solvents, heat, and ultraviolet radiation. 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 Green has no significant hazards but contained PCBs (polychlorinated biphenyls) until 1982.

History

This bright blue-green was developed in 1935 and has been used since 1938.