Jacquard Cyanotype Chemistry Option:Potassium Ferricyanide 4oz (114g) If using an alternate brand

If using an alternate brand

this unprimed canvas provides a versatile and professional foundation

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

improve flow

Jacquard Cyanotype Chemistry Option:Potassium Ferricyanide 4oz (114g) If using an alternate brandCyanotype 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