Gamblin 1980 Oils - PBr7 Raw Sienna
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.
Raw Sienna is traditionally earthy yellow glazing, initially
mined in Tuscany. For more transparency, consider using Gamblin Transparent
Earth Yellow.
PIGMENT COMPOSITION AND PERMANENCE
- Pigment Name: PBr7 Raw Sienna (Natural iron oxide hydrated)
- Pigment Type: earth
PROPERTIES
Raw Sienna is a moderately dull deep earth yellow with
medium tinting strength and excellent transparency. It is one of the basic
permanent artists' pigments and is made from a form of limonite clay whose
yellow-brown colour results from ferric oxides.
Raw Sienna is preferable to Yellow Ochre for creating flesh
tones due to its higher subtlety of colour when mixed with white. It makes a
bright Ochre when mixed with Cadmium Yellow and creates greens and grays when
mixed with Ultramarine. Raw Sienna dries quickly.
PERMANENCE
Raw Sienna has good permanence.
TOXICITY
Raw Sienna has no significant hazards.
HISTORY
Raw Sienna has been a pigment since prehistoric times,
although its current name originated during the Renaissance. It comes from
Siena in Italy and is short for terra di Siena, meaning the earth of Siena.
Sienna was famous for mining and producing earth pigments from the Renaissance
until World War II. Due to the depletion of clay deposits in Tuscany, Italian
siennas now come from other areas, including Sicily and Sardinia.
