FORMULARY FIXER 24 is a non-hardening sodium thiosulfate fixer. Without hardener, prints are easier to wash, tone and spot. Prints are fixed in two successive fixing baths requiring 3 to 5 minutes in each bath.
This fixer is recommended for use with paper or film where modern rapid fixers based on ammonium thiosulfate are unsuitable.
The chemicals in this kit are used to make a working solution, which has a shelf life of 2 to 4 months. One liter fixes about 25 8 x 10 prints.