Photographers Formulary Gold Protective (GP) Toner is similar in result to the Kodak GP-1 toner by offering maximum protection with little or no change in print color.
However, with some prints a slight shift towards blue-black may be noted. Prints treated with Gold Protective Toner are even more stable than those toned with selenium or sulfide.
Gold protective toner can also be used to protect negatives.
The chemicals in this kit are used to make a working solution, which has a capacity of about eight 8 x 10" prints per liter.