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BlockxPaints

Blockx Artists' Watercolor - Naples Yellow, 15 ml tube

Watercolor

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  • Blick Art Materials
    $15.50 USDShop
    Recorded Oct 22, 2026, 3:32 AM UTC

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Product details
Size
15 ml
Blick SKU
01706-4140
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.

Cadmium Yellow

Pigment code
PY35
Type
inorganic, cadmium
Chemical name
cadmium zinc sulfide
Chemical formula
CdZnS
Properties
Cadmium Yellow is brilliant, dense, and opaque, with good tinting strength and very high hiding power. It is the artist's principal bright yellow and is available in light, medium, and dark shades. The deeper shades appear deep orange and have the greatest tinting strength. It is slow-drying in oil form and is used in both oil and watercolor form. A clean Cadmium Orange is created when Cadmium Yellow is mixed with Cadmium Red. Hues vary by brand. Cadmium pigments have been partially replaced by azo pigments, which are similar in lightfastness to the cadmium colors, cheaper, and non-toxic. Cadmium Yellow is usually available in a pure grade, or in a cadmium-barium mix. This mix has the same permanence with a lower tinting strength.
Permanence
Cadmium Yellow is lightfast and permanent in most forms, but like most cadmium colors, it will fade in fresco or mural painting. The deeper shades are the most permanent. The pale varieties have been known to fade with exposure to sunlight in conditions where moisture is able to penetrate the binder.
Description
Aurora Yellow, Cadmium Primrose Yellow, Cadmium Zinc Yellow, Lemon Yellow, Primrose Yellow. Deep Cadmium Yellow is sometimes called Orient Yellow.

Mars Orange

Pigment code
PY42
Type
inorganic, earth
Chemical name
iron oxide
Chemical formula
Fe2O2 or Fe2O3 • H2O
Properties
Mars Orange is a bright, extremely light red and appears almost pinkish in contrast with darker colors. It has incredible tinting strength and opacity. The synthetic form of Mars Orange is made from iron oxides and is cleaner, brighter, and denser than its ochre-based counterparts.
Permanence
Mars Orange has excellent permanence and lightfastness.
Toxicity
Mars Orange has no significant hazards.
History
The word Mars refers to the Roman god of iron and war. Mars Orange has been manufactured as a pigment since the 17th century.

Zinc White

Pigment code
PW4
Type
inorganic
Chemical name
zinc(II)-oxide
Chemical formula
ZnO
Properties
Zinc White is the coolest white, and it has a cold, clean masstone and a slightly bluish tint. It has less hiding power and is more transparent than other whites. It dries slowly and is good for painting wet into wet and for glazing and scumbling. Zinc White is neither as opaque nor as heavy as Lead White, its covering power is not as good, and it takes much longer to dry. However, it does not blacken when exposed to sulfur in the air as Lead White does. It is very valuable for making tints with other colors. Unmixed Zinc White dries to a brittle and dry paint film that may crack over the years, so it is not good for frescoing. It is more transparent in acrylic form than Titanium White and is the most commonly used white with gouache. Chinese White is a version of Zinc White appropriate for opaque watercolor techniques.
Permanence
Zinc White has great permanence and lightfastness.
Description
Chinese White, French White, Permanent White, Silver White, Snow White, Zinc Oxide.

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