spinderhughes

Yes, I believe so. The last two plates that I did have maintained their color/tone thus far and the main difference was a much longer bath time.

Meaning that the plates were likely not adequately stopped from development and are still reacting? Or that the reaction will continue to happen over time with exposure to light? It's the change in tone/color two weeks later that I am inquiring about. After some research, I was under the impression that maybe I had not allowed them to wash for long enough, and that maybe there still might have been residual developer leftover that had not been washed adequately. I did a third test recently, where I washed the plates for upwards of 40-60 minutes, so I am going to see how the visible image on those plates stand the test of time as far as tone/color... Thank you for responding. Please let me know if you have any other thoughts if you have a free moment. Many thanks!

Greetings, I know that this thread is old, but I'm doing some Liquid Light tests on glass, with samples prepped with both gelatin and polyurethane. The test came out fine, but as they have sat for the last two weeks, they have begun to yellow...almost to a sepia color and one of them has turned almost completely black. Any ideas on why this might have occurred?