SDS
Raw Umber: Vigorous drier due to high manganese content (which also gives Umbers their dark color).
Series 1
Semi-transparent
Vehicle: Alkali refined linseed oil
Lightfastness I, PBr7
SDS
Raw Umber: Vigorous drier due to high manganese content (which also gives Umbers their dark color).
Series 1
Semi-transparent
Vehicle: Alkali refined linseed oil
Lightfastness I, PBr7