Holbein Watercolour Brilliant Orange 15ml Tube

Brilliant Orange (W247) Orangé Brillante

Transparent Pyrrole Orange (organic, aminoketone) is a yellow-shade orange with optimum performance; high saturation and excellent durability, excellent bleed resistance, and intrinsic strength coupled with good opacity and moderate rheology. It is semi-opaque, less opaque than Cadmium Orange.

Irgazin Orange historically was developed as a lead-free alternative opaque orange pigment. It is used in decorative, industrial, and automotive applications, often to colour plastics and polymers.

Benzimidazolone Orange is a staining, yellowish orange pigment that can become dull in tints. It has an average drying time, and it loses some of its intensity as it dries. The yellowish orange varieties are more transparent.

Historically, the benzimidazolone group of pigments was developed and patented in 1960 by Hoechst A.G., a German chemical manufacturer that was a forerunner of the pharmaceutical company Aventis. Use of benzimidazolone pigments in the auto industry, especially Benzimidazolone Orange, became common in the 1980s because they were common replacements for lead chromate pigments, which were phased out during this period.

• Pigments: Transparent Pyrrole Orange (aminoketone) PO73, Benzimidazolone Orange (monoazo) PO62
•  Code TKE
• Permanence: *** Absolutely Permanent Colour. Transparent Pyrrole Orange has been demonstrated to have excellent stability and lightfastness in automotive applications. Benzimidazolone Orange has excellent lightfastness and outstanding heat and solvent stability for a monoazo pigment.
• Opacity/Transparency: Transparent,
• Staining Quality: Semi-staining, easy colour to lift.
• Quality: Exceptional
• Price Series: C
• Toxicity: The Australian government's Department of Health and Aging, reported in its Summary Report: NA/238 that "Irgazin DPP Orange 16AOA is likely to be of low oral and dermal toxicity in humans and to be non-irritating or very slightly irritating to the eyes and skin. It may cause lung irritation due to its particle size." Benzimidazolone Orange is not considered toxic.