All color making is done by hand, and processes are controlled by artists. Pigments are ground in stone rather than metal rollers.
Color Swatch created using heavy application/diluted application and was applied on cold press watercolor paper (150 lb) material.
Oxides of Cobalt and Chromium
Cobalt Chromite Blue is an opaque pigment with moderately low tinting strength.
Cobalt salts have excellent lightfastness and temperature stability.
Cobalt salts are toxic when ingested or inhaled, and slightly toxic on contact with the skin. Evidence of Chromium(III) carcinogenicity is inconclusive. Chromium(III) salts appear in greenish pigments.
Cobalt Turquoise, Shepherd Blue
® Old Holland is a registered trademark.