Available Sizes:
Art Spectrum® French Ultramarine is a rich, transparent blue. Developed in 1828 by the French chemist Jean-Baptiste Guimet, it is a synthetic but indistinguishable alternative to the costly pigment derived from Lapis Lazuli.
| Pigments | PB29 |
| Lightfastness | ASTM I |
| Permanence | **** (excellent) |
| Opacity | Semi-Transparent |
| Granulating /Staining | Granulating |
| Pigments |
Lightfastness |
Permanence |
Opacity |
Granulating /Staining |
| PB29 |
ASTM I |
**** (excellent) |
Semi-Transparent |
Granulating |
ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
