Jacquard Cyanotype Chemistry Option:Potassium Ferricyanide 4oz (114g) Remove carefully with a small

Remove carefully with a small amount of methylated spirits on a lint-free cloth

and non-yellowing

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Compatible with Gamsol for creating washes or underpaintings

This is useful when you find a particular piece rougher than you expected

Jacquard Cyanotype Chemistry Option:Potassium Ferricyanide 4oz (114g) Remove carefully with a smallCyanotype is the original sun printing process and one of the earliest photographic techniques ever developed. Discovered in 1842 and distinctive for producing rich, Prussian blue monochromatic prints, Cyanotype was used well into the 20th century as an inexpensive method for reproducing photographs, documents, maps and plans (hence the enduring architectural term 'blueprint'), as well as for making impressions of biological specimens in the field