[Aquanet] ultramarine blue vs French ultramarine blue

[Barry Lindley]

Hi, Pat-

 

Ultramarine blues, all considered PB29, vary significantly among
manufacturers, according to the pigment source and the exact details of
manufacture and purification (oven temp, etc.).  "French" ultramarine is, I
think, called that because the details of its manufacture are a little
closer to the first industrial method developed in France, but I can't
remember where I read that.  For any given manufacturer, the usual
difference is, as stated by Daniel Smith:

 

"Ultramarine Blue plots bluer and slightly less saturated while French
Ultramarine is slightly redder and more saturated."

 

But Winsor & Newton French ultramarine may be less red than M.Graham plain
ultramarine or Maimeri Ultramarine deep.

 

I find that I switch off between FUB and UB without conscious purpose, but
use only W&N, Daniel Smith, or M.Graham.  I advise not worrying about the
name so much as whether you like the paint and whether it suits your
purposes. Exact hue under standard laboratory conditions is not really that
important, since it is relative hue in your painting that dominates the
effect.  It is good to pick one that has a high saturation, pleasing
granulation, and nice working qualities.

 

 

 

Barry

 

 <mailto:lindleybd at gmail.com>  

Barry D. Lindley
Paintings and Drawings
www.BarryLindleyArt.com

 

  _____  

From: aquanet-bounces at aquanetart.com [mailto:aquanet-bounces at aquanetart.com]
On Behalf Of Patrick Davis
Sent: Wednesday, February 03, 2010 12:35 PM
To: aquanet at thedigitalbraintrust.com
Subject: [Aquanet] ultramarine blue vs French ultramarine blue

 

Hi, gang.

I notice that there are paints labelled both French UB and just UB. Is there
any real difference?

I checked Handpring, and it appears that all are PB 29. I also notice DS
sells under both names- and it's PB 29. As is often the case, I am confused.
Can anyone shed light on this? Why are both names used?

the world is soooooooo confusing
:-)
Pat



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