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Blockx Artists' Watercolor - Primary Blue, 15 ml Tube
Watercolor
Recorded retailer price · not live
$15.50
Blick Art Materials · recorded 2026-10-21T08:06:57.944404000Z
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Product details
- Size
- 15 ml
- Blick SKU
- 01706-5920
About this product range
These artist grade watercolors continue the Blockx family legacy that began in 1865. They are made using the same processes developed many years ago.
Only the finest ingredients go into the manufacture of Blockx watercolors. Rare, tough pigments are ground slowly and repeatedly on stone mills to achieve the optimum particle size, and to eliminate overheating and iron pollution. The pigments are then blended with pure, light gum Arabic, honey made from selected flowers, and chemically pure glycerin and water.
The result is a variety of stable, transparent colors with wonderful working properties.
Pigment information
General reference notes about pigments can describe other media (such as oil). They do not verify this product’s exact formulation or behavior.
Phthalo Blue
- Pigment code
- PB15:3
- Type
- organic
- Chemical name
- beta copper phthalocyanine
- Chemical formula
- C32H16CuN8
- Properties
- Phthalo Blue PB15:3 is a structural variant of Phthalo Blue PB15 that produces more greenish tones.
- Permanence
- Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. 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 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 now known as Phthalo Blue was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark color 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 a cyan to replace Prussian Blue.
- Description
- Phthalo Blue Green Shade, Winsor Blue Green Shade
Related supplies
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