Classic Cyanotype Chemisty - 100ml X2

Classic Cyanotype Chemistry – Sun Printing Made Simple

In 1842, scientist and stargazer Sir John Herschel discovered that a mix of iron salts and sunlight could turn paper a stunning, ocean blue. Thus the cyanotype was born — the original “blueprint” and still a favorite of artists today.

Our Cyanotype Chemistry comes as two 100 ml solutions:

• Solution A – Ferric Ammonium Citrate — the “sun catcher,” making paper UV-sensitive.
  
• Solution B – Potassium Ferricyanide — the “blue maker,” bringing those deep Prussian blues to life.

Mix equal parts A + B, brush on paper or fabric, dry, then expose under sunlight with leaves, flowers, or photo negatives. Rinse with water, and watch your image bloom into brilliant blue.

Simple, playful, and a little bit magical — just as Herschel intended.