Quote Originally Posted by Photo Engineer View Post
This fixer describes TF-4 to a "T". To get that information, go to the Formulary web site and look up the instruction sheet for TF4. It has all kinds of information.

PE
Thank you. And not to steal the thread away from the OP, but I wonder how this fixer would allow safe ferrotyping with no hardener.
http://stores.photoformulary.com/Det...ory=ALL&no=148