There used to be a rapid fixer that came in a box with a bag inside that held the fixer and a nozzle for extracting (sprint maybe? mine had no labels from a dentist office). As you used up the fixer it would collapse the bag with almost no air. I had a 1/2 gallon that was still good after 10 years of no activity. Its all in how you store them and the working mix always seems to exceed recommended capacity.
Bookmarks