Foma Fomatoner Sepia is a liquid concentrate, two-bath sulfide-based toner for resin-coated or fiber-based black and white papers. It gives black and white prints a yellow-green to brown to violet-brown tone.
Toning occurs at various temperatures and the length of time depends on the desired effect, but is generally from 1 to 5 min. One set is enough to tone about 5 sq m of paper, or about 100 sheets size 8x10" /20.3 x 25.4 cm.
The toner is composed of 2 parts (bleaching solution A and toning solution B), each of which is diluted with water in a ratio of 1:9 to control image tone and toning speed. Water of low hardness, preferably distilled, is recommended.
After being washed, prints are first put into the bleaching bath, then washed again and placed in the toning bath. Following toning, prints should be washed thoroughly again, preferably in running water.