Gamblin 1980 Oils - Diarylide yellow HR70 (PY83);
PY83-Diarylide Yellow 83
Gamblin’s approach is different. 1980 colours contain pure
pigments, the finest refined linseed oil, and marble dust (calcium carbonate).
Since oil painting began, these three ingredients have made more affordable
colours.
Painters experience true colours without homogenized texture
or muddy colour mixtures. Gamblin's approach to using traditional raw materials
and processes ensures that artists experience the luscious working properties
they expect from their oil colours.
This colour has been prized for hundreds of years, but only
now has it been made with a completely lightfast pigment.
PIGMENT COMPOSITION AND PERMANENCE
- Pigment Name: Diarylide yellow HR70 (PY83); PY83-Diarylide
Yellow 83
- Pigment Type: organic, disazo
PROPERTIES
Diarylide Yellow is a semi-opaque, moderately staining,
intense, deep reddish yellow pigment with good tinting strength.
PERMANENCE
Diarylide Yellow 83 has excellent lightfastness and
permanence. However, it can fade in tints, so some artists do not consider it
suitable as an artist’s colour. Many other diarylide yellow pigments are
reported to have fair to poor lightfastness, and some are entirely fugitive.
Diarylide Yellow 83 is one of the most permanent of the
entire group.
TOXICITY
Diarylide Yellow has no significant acute hazards, but
chronic hazards have not been well studied.
HISTORY
Diarylide Yellow comes from a family of azo pigments called
Diarylide. These yellow-hued pigments were developed around 1940 and are
essential in printing inks.
