Promotes removal of fixer from films and fiber- base papers to shorten wash times and make washing at lower wash- water temperatures practical. Dilute 1 part stock solution to 4 parts water.
Ideal when water or time is at a premium. Use to facilitate the removal of hypo (fixer) from black-and-white fiber-base papers, films, and plates.
Reviewed by 2 customers
Sometimes certain films like TMAX won't clear up no matter how many hours you leave them in the fix. I discovered that HCA will remove the faint purple cast and light frosting on negatives in only a few minutes. The tint on TMAX negatives shouldn't be confused with inadequate fixing; sometimes it just comes out a little more colorful. HCA works by dissolving insoluble fixing products and is designed to speed up fixing and make the negative/paper last longer, but it also helps get the negatives crystal-clear. I also appreciate it speeding up the bottleneck in the fix bath when I'm printing.
Would be better having a liquid one like the Ilford Washaid, but can't complain!