This delicate and subtle medium is capable of detailed and complex effects. Sennelier Egg Tempera is famous. It is a water soluble and highly archival painting medium, wonderful for fine art painting, restoration, and icon painting.
Color Swatch created using full strength/50/50 and was applied on cold press Bristol board (2 ply) material.
cobalt zinc aluminate
Cobalt zinc aluminate produces a deep, bright shade of Cobalt Blue
Cobalt salts are extremely lightfast and temperature stable.
Cobalt salts are toxic.
Since the discovery of processes for mining and purefying Cobalt Blue (PB28) in the 19th century, additional processes for manufacturing and purifying other cobalt salts have become available. Their use as artist pigments has followed.
Cobalt Blue Deep
® Sennelier is a registered trademark.