CAS AlkydPro Fast-Drying Alkyd Oil Color - Cobalt Blue, 37 ml tube

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  • Blick Art Materials
    $24.68 USDShop
    Recorded Oct 21, 2026, 11:16 AM UTC

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Product details
Size
37 ml
Blick SKU
00504-5183
About this product range

AlkydPro Fast-Drying Alkyd Oil Colors are artist's colors for the 21st century. Because AlkydPro Colors dry much quicker than traditional oil paints (within 20 hours), artists can complete paintings in a fraction of the time. The quick drying time also allows more creative freedom for artists who travel, paint plein air, or work in layers. The binder used in AlkydPro Alkyd Oil Colors is a sunflower oil alkyd resin. Because they contain no linseed oil, AlkydPro Oil Colors won't yellow, crack, or dull over time. At the same time, every color offers a high pigment concentration and the buttery feel that is consistent with professional-quality paints. The high pigment concentration also means that colors are purer, and a larger tube size means paints stretch further, ensuring a better value for the artist. AlkydPro Alkyd Oil Colors are compatible with traditional oils, mediums, mineral spirits, and turpentine, as well as with other alkyds. They also can be used to speed the drying time of oil paints. They contain no fillers, adulterants, or opacifiers. AlkydPro Alkyd Oil Colors dry to a brilliant, flexible finish and retain their color intensity after drying. Made in the USA.

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 Blue

Pigment code
PB28
Type
inorganic
Chemical name
cobalt(II) oxide + aluminum oxide
Chemical formula
CoO + Al2O3
Properties
Cobalt blue is a semitransparent pigment with low to moderate tinting strength. When it dries, it appears lighter and less saturated. Pigment particles are large and grainy. Differences in how the pigment is ground and mixed lead to considerable differences in its performance among various manufacturers.
Permanence
Cobalt blue is absolutely lightfast and extraordinarily stable. The stability of cobalt salts at high temperatures make them the standard for blues used in ceramics and glassware.
Toxicity
Cobalt salts are toxic. Avoid respiratory and skin contact. Soluble cobalt may cause irritation and allergic reaction through contact with skin. It is considered a possible carcinogen.
History
Since ancient times, smalt blue has been used to color glass and ceramics. Cobalt salts, which give smalt its characteristic blue color, were identified in the 18th century. Techniques for manufacturing Cobalt Blue, a chemically pure salt of cobalt and aluminum oxide, were developed in 1802.
Description
Smalt Blue

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