R&F Encaustic Block, Phthalo Green 40ml

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

Very powerful and deep. In line work it can look blacker than black. Vivid undertone, can b a bit harsh. 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 similar pigment properties and permanence 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 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. They are currently used in inks, coatings, and many plastics due to their stability and are considered a standard pigment in printing ink and the packaging industry.

Toxicity

Phthalo Green has no significant hazards, but it contained PCBs (polychlorinated biphenyls) until 1982.

History

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