Michael Harding Artists Oil Colours - Red Umber (No. 124) - 40ml

Inorganic – Red Umber is a synthetic iron oxide. Michael Harding decided to make this variant shade of Burnt Umber after his observations of 16th and 17th  century paintings suggested this pigment had lighter and redder characteristics than those it assumed when manufactured in animal bladders. Raw Umber is calcinated to make the pigment, and the amount of Manganese Dioxide mixed with the Iron Oxide determines the range of undertones; Michael Harding's formulation is much warmer than is usual.

Colour Index PBr6
Drying Speed Very Fast
Transparency Semi-Transparent
Lightfastness Excellent
Oil Content Average
Tint Power Average
Toxicity Non-Toxic
ASTM D-4236 Yes