This Cyanotype toning kit contains 400ml Tannin based toning solution and 40g Sodium carbonate powder.
Use the sodium carbonate powder mixed in water as a bleaching agent to fade the blue colour of your print. After washing the diluted toning solution will turn your prints into different shades of magenta/brown depending on the time you leave it toning. With different techniques you can achieve a wide variety of colours and shades.
We also include full detailed instructions for use.