
Product details
- Size
- 15 ml
- Blick SKU
- 00817-7910
About this product range
Schmincke Horadam Gouache is more than just opaque watercolor. Since no white is added to Horadam Gouche to artifically boost its covering power, it can create crisp color blends like no other gouache. Of the 48 colors, all but 8 are based on a single pigment.
Like Horadam Watercolors, colors thin with water and are easily rewetted if left to dry on the palette. Horadam Gouache is so finely ground, it can even be used for 0.15 mm airbrush work.
Many other brands of gouache are "designer" gouaches, with an emphasis on accurate pre-mixed colors for use by the designer. By contrast, Horadam is a "fine artist" gouache, with an emphsis on providing the classic range of pigments as pure, single-pigment colors.
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.
Cobalt Green
- Pigment code
- PG19
- Chemical name
- cobalt(II)-oxide-zinc(II)-oxide
- Chemical formula
- CoO • ZnO
- Properties
- Cobalt Green is a pure, fairly opaque, moderately bright bluish-green with a low tinting strength and limited hiding power. It makes valuable grays and muted, minimalistic greens when mixed with other pigments. However, it can brown at full strength and fade when mixed with lead based whites. It is quick drying in oil form and is not widely used because its hue can easily be matched by mixing green and blue pigments with superior painting properties. It is currently not in wide use.
- Permanence
- Cobalt Green is completely lightfast. Its permanence is excellent, so it can be used in all painting techniques.
- Toxicity
- Cobalt Green is moderately toxic if inhaled or ingested. It is slightly toxic if it comes into contact with skin.
- History
- Cobalt comes from the Middle High German word kobolt, an underground goblin, because miners thought cobalt harmed silver ores. In 1780, the Swedish chemist Sven Rinmann developed a process for making a compound of cobalt and zinc (zinc oxide). It was introduced as a pigment in 1835, but poor tinting strength and high cost kept it in limited use throughout the next centuries. It gained some popularity among 19th century landscape painters.
- Description
- Green Smalt, Rinmann’s Green, Swedish Green, Zinc Green. Gellert Green is a similar variety, though it is made using a slightly different process.
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