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Artists Quality Pigments Earths

Earth colours are derived from clay deposits coloured by natural oxides, particularly iron oxide and manganese oxide. They are among the most ancient pigments, providing a broad spectrum of colours, which are often specific to particular locations. Our range of earth pigments comprises both naturally occurring and synthetically produced colours. Natural pigments are valued for their permanence, transparency and delicate tones, while synthetic iron oxides often offer a more uniform pigment size, no impurites, higher tinting strength and greater opacity. They both have a wide range of applications, although natural pigments are not recommended for use with acrylic binders.

Note on making oil colours: Every pigment requires a different volume of oil to bring it to the desired consistency. This varies enormously, so a pigment like Alizarin, for instance, requires almost twice as much oil by volume as White Lead. In practice, it is advisable to avoid fast-drying colours that require a large amount of oil, such as Umbers, Siennas and Cobalt Blues, in underpainting, unless they are applied thinly or in tints reduced with white.

Toxicity Ratings:
The Classifications used are based on those intended for guidance of artists’ colour manufacturers where large quantities might be involved along with sustained, frequent use. We recommend that necessary safety precautions should be followed for best studio practice. Wear a dust mask and work in a well-ventilated space to avoid breathing in the dust. Do not eat, drink or touch your eyes while handling these products, and make sure that your work area is easy to clean at the end of the day. 

Code:
A - Non-hazardous.
B - Relatively harmless.
C - Very low toxic hazard – some precaution necessary.
D - Defined physiological hazard – appropriate precautions necessary.

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