Sorry, I misread your original question indeed! I have tried many temporary supports, also with my dichromates workflow. I had succes with transparant sheets of PVC/vinyl from one supplier, but not from another. Also the polyester sheets I found did not work very well at that time. Lots of frilling and other transfer problems.
Originally Posted by gmikol
This changed dramaticly when I tried the albumen method. Tod's video shows how to do it and a write up of his method can be found at the sizing appendix of Dick Sullivan's Carbon Printing Manual. It really makes transfer very very easy! A description of the same method by Gary Baker can be found in the Yahoo Carbon list files section.
But it reintroduces dichromates again..., although in very low concentration. So next I will try to harden it with DAS (from Di-Azido-Stilbene, the chemical industries nickname for our beloved powder) as suggested earlier by Charles. With an albumen coating you can use almost any transparant substrate. For the moment I prefer transparant polycarbonate (0,25mm). It is very dimensionally stable and stays perfectly flat.
By the way: for the sake of continuity I did some reseach for other diazidostilbene suppliers worldwide. I found a Shanghai based chemical company that sells 1 kg for $350 - not a bad price! It's double the price from the current Secant sale, but they seem to have it in generous quantities!
Last edited by keesbran; 09-24-2012 at 07:01 AM. Click to view previous post history.