
Product details
- Size
- 200 ml
- Blick SKU
- 01574-5184
About this product range
- Legendary professional-quality oil colors
- Majority of range is mono-pigment
- High pigment loads and the finest linseed/poppyseed oils
- Maximum tint strength and lightfastness
- Stone ground for optimal pigment integrity
Family-made in Belgium for over 140 years, Blockx Oil Colors are hand-ground up to four times on slowly rotating stone mills for perfect pigment integrity and the purest possible color experience. This time-honored production method results in a range of luminous, ultra-smooth oil colors that rank among the world’s very best.
Still crafted using Jacques Blockx’s original formulas, maximum concentrations of the purest pigments guarantee unparalleled brilliance. Iron oxides, earths, and blacks are ground with linseed oil — the rest of the range is ground with non-yellowing poppyseed oil, which results in noticeably brighter, more intense color and cleaner mixtures.
Entirely free of additives or fillers, Blockx Oil Colors carry the highest possible lightfastness ratings. The range consists primarily of single-pigment colors, and each is meticulously tested to uphold the legendary quality that has attracted artists like René Magritte, Salvador Dalí, and Frank Stella. Historical pigments — including Vermilion, Naples Yellow (Light and Dark), and Lapis Lazuli — expand the range for those seeking timeless hues.
An investment in Blockx means investing in the very finest materials for your art, safeguarding its integrity for generations to come.
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
Track this price
New lows for this exact package, across matched retailers.
Loading your account…
Price history
More to explore
Related supplies from the catalog.


Blockx Artist Oil Color - Cobalt Blue Dark, 35 ml tube

Blockx Artist Oil Color - Cobalt Blue Dark, 200 ml tube

Blockx Artist Oil Color - Blockx Blue, 35 ml tube

Blockx Artist Oil Color - Blockx Blue, 200 ml tube

Blockx Artist Oil Color - Cobalt Turquoise, 35 ml tube

Blockx Artist Oil Color - Cobalt Turquoise, 200 ml tube

Blockx Artist Oil Color - Cerulean Blue, 35 ml tube

Blockx Artist Oil Color - Cerulean Blue, 200 ml tube

Blockx Artist Oil Color - Prussian Blue, 35 ml tube

Blockx Artist Oil Color - Prussian Blue, 200 ml tube
