Ilford Ilfostop Stop Bath - 500 Milliliter

Generally, 30 seconds to a minute is sufficient. Always agitate the film or paper during this time.

Yes, but it loses effectiveness over time. Monitor its performance and replace when necessary. It's best to replace it when you notice a change in performance.

Skipping the stop bath can lead to over-development, staining, and inconsistent results, as the developer will continue to act, even after the paper or film is removed from the developer.

Yes, it is safer than many alternatives, but always wear gloves and eye protection. Avoid contact with skin and eyes.

Replace the stop bath when it takes longer to stop the development process, or when your results become inconsistent. Also, replace it if it becomes highly discolored.

Ilford Ilfostop is designed for black and white film and paper. Using it with color materials is not recommended.

Check if the stop bath is fresh and mixed correctly. Ensure adequate agitation during the stop bath stage. If the problem persists, check for any developer carry-over.

Verify the stop bath solution is fresh and not contaminated. Review the development times and temperatures, and ensure the correct procedures were followed.