Ultramarine blue is the blue on most people's palette, a synthetic replacement to Lapis Lazuli it was created in the 19th Century in France, hence sometimes it is called French Ultramarine.
This one is made in France, with French walnut oil by a Frenchman, so pretty authentic!
The only version we sell which is ground with walnut oil, walnut oil is clearer and less likely to yellow over time.
To me there is tangible difference compared to a linseed version, it lends a beautful crisp transparency to the paint alongside the lack of fillers or extenders, this is the cleanest, clearest ultramarine blue in masstone I have used.
Leaning slightly towards red, it's tints with white are marvellous lilac blues.
As you can see from the swatch, the transparency is taken to the highest level with the walnut oil and the high pigment load, it paints 'long' and is silky without being too loose.
Francois has made these paints handle beautifully.
Pigment - PB29
Vehicle - Walnut Oil
Opacity - Transparent