For dish & machine use, including LITH dev. and other specialist solutions. supplied as a single liquid concentrate designed to intensify thin B&W negatives. The negative is bleached back in CI10 (diluted 1+4 with water) and then redeveloped in PRINT developer. The image will return stronger. The process can be repeated a few times to maximise intensification. There is no need to refix the negative -just wash thoroughly.
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