For all types of papers. Used at 20° C.
Water, to make
* Potassiumcyanoferrat(III) K3Fe(CN)6. Keep away from light.
For use: take 1 part of the above to 9 part of water.
The stock solution will keep indefinitely if protected from strong light.
Prints must be wet before bleach. Prints must fully deweloped, fixed and rinsed before bleach.
Complete bleaching takes place in about 2 minutes or less. Full bleach leaves a yellowish thin picture. Partial bleach is also possible if the print is bleached shorter time.
After bleach, prints must be rinsed in water for at least 5 minutes.
The bottles must be well marked and keppt out of reach of children.