Kodak GP-1 Protective solution
Gold toner Sol A
Initially a gold chloride stock solution can be made by dissolving
1grm of gold chloride in 100ml of water.
Water
750ml
Gold Chloride solution (1% solution) 10mls
Sodium thiocyanate (or potassium thiocyanate)
10grams Water to make 1liter
Mixing
Add the gold chloride 1% stock solution to 750ml of water and set aside.
In a separate container dissolve the thiocyanate in 125ml of water and
then slowly add it to the gold chloride solution stirring rapidly during
the process.
Toning Method
Make sure the print to be toned is well washed before soaking it in
the working solution for 10mins at 20 degrees C or until there is a very
slight blue black change in tone. To increase the intensity of the blue,
the toning time can be extended up to 20mins As the toner works best when
used immediately, and about thirty 8x10 prints can be toned per gallon,
it is best to tone prints in suitable batches to maximise this expensive
process.
