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Cotman Watercolour

Cotman Watercolours Ultramarine


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Cotman Water Colours Ultramarine 8ml Tube Ultramarine is a rich deep transparent blue. It was created by French chemist Guimet in 1828 as a synthetic but chemically identical replacement for the expensive pigment derived from Lapis Lazuli. Colour Granulating Staining G Colour Number 660 Colour Series 1 Lightfastness (ASTM) II Permanence Rating A Pigment(s) PB29 Product Code 303660 Transparency / Opacity T