The drying time depends on temperature, humidity, aeration, and the thickness of the paint coat.
Ultramarine Blue is the oldest and most brilliant blue pigment, with the least amount of gren and purple in its undertone. It has a medium to high color strength and a beautiful transparency.
Our ultramarine is a little reddish undertone, whereby it can be mixed extremely well with Alizarin madder lake or other slightly bluish undertone reds in order to create a series of vibrant purple and violet tones.
Natural ultramarine is a pigment that is obtained from the gemstone lapis lazuli
The name comes from the medieval Latin Ultra, which means as much as beyond, and mare, which in turn means the sea. It was imported from Asia to Europe by sea. Why it is called translated "beyond the sea". In its natural form it was and still is one of the most expensive pigments in the world.
Synthetic ultramarine is obtained based on an originally in France in 1826 developed manufacturing process.