Cotman 21ml - Prussian Blue
Prussian Blue is a deep blue colour. It was made by German chemist Diesbach around 1704 making it the first synthetic blue pigment. It quickly gained favour as an alternative to genuine Ultramarine.
- Lightfastness (ASTM) I
- Permanence Rating A
- Pigment(s) PB27
- Transparency / Opacity T