Ultramarine Blue Michael Harding 40ml

Model: 137316
$20.25 Sale: $16.2020% off
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Description

Ultramarine Blue (No. 113)

 

Inorganic

Colour Index PB 29
Drying Speed Average
Opacity Covering Transparent
Tint Power Average
Lightfastness Excellent
Oil Content Average, Linseed
Toxic No
Conforms To ASTM D-4236

 

An obviously beautiful mid blue.

The discovery in the 1820’s of a Sodium Sulphosilicate compound, which had appeared as a mysterious blue deposit on soda-ash furnaces, was a liberating moment for financially challenged artists everywhere.

Up to then the only available version of this compound was the often unobtainable Lapis Lazuli ore, mined in Afghanistan.

Ultramarine has a high Tint Power, our chosen shade produces strong green shade blue hues, and makes wonderful violets with Magenta and the red Lake colours. It is useful in greens and greys.

The only chemical weakness is a recorded sensitivity to atmospherically borne acids, which can bleach it out.

One of the more difficult paints to make, as it forms an intractable runny syrup when first ground into oil, which has to be stabilized with a small amount of wax.

by Denise Ellison

I love this ultramarine blue its absolutely so rich

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