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Ilford Ilfostop is a citric acid based liquid concentrate stop bath for black & white photographic paper and film.

Low Odour Stop Bath

The stop bath rinse immediately halts the development process by neutralising the developer, and prevents alkalinedeveloping agentsfrom transferring into the acidic fixer bath, extending the life of yourfixer solution.

Darkroom Friendly

A stop bath is specifically recommended for dish/tray processing of paper or deep tank processing of film. The low odour compositionfacilitates working in a darkroom, and is compatible with both RC as well as fibre based paper.

Ilford Ilfostop contains apH sensitive indicator dye that changes colour from yellow to purple as the stop bath becomes exhausted.

Package Size



Liquid Concentrate

Paper Compatibility

RC and Fibre Based paper

Recommended Dilution

1 + 19

Concentrate pH


Specific Gravity at 20°C


Working Strength

7 days


5 years in full airtight bottles

12 months in half full tightly capped bottles

Manufacturer Product Code


* Specifications subject to change by the manufacturer without notice
  • Ilford Ilfostop Stop Bath (500ml)
  • Reviews

    * Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.