Description Colour Index PBr 6 Drying Speed Very Fast Opacity Covering and Tint Power Semi-Transparent Lightfastness Excellent Oil Content Average, Linseed Toxic No Conforms To ASTM D-4236 Raw Umber is one of the fundamental Earths used as an imprimitura pigment to draw out compositions as a ground, as many Rubens sketches prove. Depending on the degree of transparency it exhibits greenish undertones.
