RE: Toner

Ole Chr. Magneshaugen (ocm@eidolon.no)
Tue, 28 Apr 1998 23:50:32 +0200

Are any of you familiar with scientific study of thiocarbamide,in terms of
permanence, in relation two more traditional sulphide-based sepia toners?

I´ve read here and there, that thiocarbamide is inferior to sulphide in this
respect, not by far, still being within the margins of thee rather open
phrase "A recommended archival toner". Though nowhere have I seen actual
test results, like the ones available for sulphide toners.

-olechr