- It was discovered in antiquity that Raw Sienna could be roasted to produce a warm, rich orange to reddish brown.
- Particularly valued for its transparency, it is one of the small group of ancient pigments whose beauty and permanence have not been equaled by any modern industrial substitute.
- Rated ASTM 1 in all of our media and is on the list of approved pigments. Good grades, unclouded by filler or other pigments, are worth seeking.
- Tinting strength varies with different grades, as does clarity of hue and transparency. Choose carefully, a clear fiery Burnt Sienna can be invaluable. Non-metallic preservatives.
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