NEW!Holbein Artists' Watercolor - Pearl Silver Orange, 15 ml Tube

Pigment Information

This color contains the following pigments:

PY110-Isoindolinone Yellow

PR209-Quinacridone Red

PM1-Aluminum

Pigment Name

PY110-Isoindolinone Yellow

Pigment Type

organic synthetic

Chemical Name

isoindolinone yellow

Properties

Isoindolinone Yellow is a high performance pigment of excellent brightness and an average drying time.

Permanence

Isoindolinone Yellow has excellent lightfastness.

History

The first isoindoline pigments were patented in 1946, and commercial production of pigments in this group began in the 1960s. Several isoindoline yellow pigments are available.

Pigment Name

PR209-Quinacridone Red

Pigment Type

organic, quinacridone

Properties

Quinacridone Red is a bright, clean red pigment with average drying time. Quinacridone pigments have relatively low tinting strength in general. For this reason, quinacridone colors are often expensive, because more pigment is required in the formulation.

Permanence

Quinacridone Red has excellent permanence and lightfastness.

History

Although quinacridone compounds became known in the late 19th century, methods of manufacturing so as to make them practical for use as commercial pigments did not begin until the 1950s. Quinacridone pigments were first developed as coatings for the automotive industry, but were quickly adopted by artists.

Pigment Name

PM1-Aluminum

Pigment Type

inorganic

Chemical Name

aluminum

Properties

Powdered aluminum is used to create silvery metallic and interference effects.

Permanence

Aluminum powder is lightfast, but it must be protected from oxidation. Under normal conditions, aluminum metal is protected by a thin layer of oxides that forms on the metallic surface.

History

Although aluminum is an abundant element in the Earth's crust, it was a semi-precious metal until the late 19th century, when an electrolytic process was developed for extracting aluminum from the mineral oxide forms in which it naturally occurs.