U of S | Mailing List Archive | alt-photo-process-l | 3rd layer of gum

3rd layer of gum

  • To: alt-photo-process-l@usask.ca
  • Subject: 3rd layer of gum
  • From: Paul Viapiano <viapiano@pacbell.net>
  • Date: Tue, 06 Oct 2009 13:18:56 -0700
  • Comments: alt-photo-process mailing list
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Hi all...
Why does the 3rd layer of a gum print always develop so quickly, or is subject to washing off so much more quickly than the other layers, whether with sized paper or not...? (regardless of printing order, as well...and these are all the same exposure time, too)
This has happened on several tricolors I've done now...