[no. 506] Cobalt Blue - M. Harding Oil - 40ml

Michael Harding Cobalt Blue -  Introduced at about the same time as Ultramarine, Cobalt Aluminate is a synthetic inorganic pigment. It is a more greenish-blue, with a heavier, more mineral appearance when seen as dry pigment. The hues formed from it are correspondingly heavier and more grey. But it has a certain shade that the less expensive ultramarine cannot quite match. The paint film when cured is quite soft. Color Index PB28 Drying Speed Very Fast Transparency Semi-Transparent Lightfastness Excellent Oil Content Average Tint Power Average Toxicity Non-Toxic ASTM D-4236  ✓ Prop 65  ✓