Whilst I'm not answering the question, I too have been waiting to mix up my Kodak sepia toner. I've held back because I don't yet have a "bank" of prints I wish to tone and I don't know the keeping properties of made up solution. What are the keeping properties of made up Kodak sepia toning solution in ,say, a full capped container and in, say, a capped partly filled container? Thanks in advance(posted 9086 days ago)