Clearstop Overview
From Silvergrain Products
Clearstop is an odorless stop bath based on citric acid. Clearstop is dye-free, perfume-free and does not contain acetic acid. This stop bath quickly halts development and is compatible with all b&w fixers and a wide range of materials and processing techniques. Clearstop can be used with a non-acid fixer such as Clearfix Neutral without any color change in the processing solution. Clearstop is supplied as a highly concentrated liquid stock which can be mixed on a one-shot basis, or made into working solution and reused until exhausted, with or without replenishment. Dilute 1+31 for film and paper. Sizes: 32 oz, 1 gallon.
Material Safety Data Sheet