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$16.95
Availability: 3
Cosmetics
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Manufacturer's warranty as detailed in the manual
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Formulary's Sepia Sulfide Toner 221 is a classic bleach and redevelopment toner that produces rich permanent sepia-brown tones. Most types of paper tone well with this process, including resin coated paper. The bleach contains potassium ferricyanide that changes the metallic silver to a silver salt. After bleaching, the print is then redeveloped in sodium sulfide.
This kit makes 1 liter of bleach working solution and 1 liter of toning stock solution.