Silvergrain Clearstop Odorless Stop Bath - This stop bath is designed to halt development of the image. It is compatible with all general black and white fixers. Using Clearstop will extend the life of your fixer and assure properly processed film and prints.
Dilute 1:31 for film and paper
Clearstop can be used with a non-acid fixer such as Clearfix Neutral without any color change in the processing solution