Concentrato in Polvere di Fissaggio Professionale, per preparare 1 Gallone

Mixing this powder was straightforward—it dissolved completely in a couple minutes with no lumps left at the bottom of the jug. The gallon it made has been sitting on my shelf for months and the long shelf life claim checks out, still working fine for my last batch of film and prints.

Mixed a batch last night and it dissolved completely in about five minutes with no lumps, which was a pleasant surprise for a powder. The fact that this makes a full gallon means I won't have to reorder for a long time, and the shelf life on the concentrate is a nice peace of mind for occasional dar

Finally got tired of buying liquid fixer by the bottle, so this powder concentrate is a game changer for my darkroom budget. Mixed up a full gallon and it dissolves cleanly with no residue, and the hardening agent works great on both my roll film and fiber paper.