good day folks. A local studio asked me to do a demo in salt printing. im planning on 10 (4x5) prints. Ive done the process 4 years ago but I wasnt really toning that time. I did notice that some of my prints have faded or discolored.

does anyone have a recipe for gold toner. I only have available gold chloride at 1% and borax. I will not be able to source any other ingredients for the recipes ive seen on the internet. I live in south east asia and its so hard to get anything here.

Im more concerned about permanence than the actual tone. for 4x5 prints how do i know if i exhausted the toner. any info is greatly appreciated.