It may have been that all the pt was used, but it may have also been a pH issue. There is a pt intensifacation step for PT/PD printing where you use platinic acid and sodium formate. There need to be a precise range for that toner to work. If the pH os too high or low it is a no go. You may wish to try it again but prior to placing your print in the toner directly try a acid bath only, then put it in the toner. With all the buffering that goes into paper and the alkaline level of some water, that may be an issue for you.
Originally Posted by scootermm