R&F Encaustic Paint Block - Indanthrone Blue, 40 ml

Neither greenish nor reddish, but a neutral blue. Great for chromatic black and greyish tints.

• Pigment Composition: PB60-Indanthrene Blue
• Paint Lines: Encaustic, Pigment Stick
• Opacity: Transparent
• Pigment Stick Drying Rate: Slow
• Classification: Synthetic Inorganic
• Chemical Composition: Anthraquinone blue
• Safety Information: Conforms to ASTM D-4236

Pigment Name: PB60-Indanthrene Blue

Classification: Organic, vat dyes

Chemical Composition: Complex, insoluble anthraquinone

Properties

Indanthrene Blue is a clear, clean, deep blue organic pigment. It has moderate to high tinting strength and is less overpowering than Phthalo Blue. Hansa Yellow Deep, Benzimidazolone Orange, and Raw Umber are its best mixing complements.

Permanence

Indanthrene Blue is permanent and has excellent lightfastness in both masstone and tints.

Toxicity

Indanthrene Blue varies in its acute toxicity, though toxicity is generally slight.

History

Indanthrene Blue is the oldest vat dye, discovered and patented in 1901 by Rene Bohn. It is considered the first anthraquinone vat dye, a group of dyes characterized by excellent lightfastness. The pigment originates from this dye.