Humidity and cyanotypes

Discussion in 'Alternative Processes' started by AshenLight, Aug 20, 2009.

  1. AshenLight

    AshenLight Member

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    Hi all,

    Its been very hot and humid for the last week or so where I live. I'm suddenly having problems coating a paper I regularly use (Arches Aquarelle) with the same chemistry (traditional 1A:1B) and the same coating process (hake brush). The paper is drying with severe streaks... severe enough that I would call the prepared sheets unusable. Is there a general guideline for humidity levels and the cyanotype process? I've seen humidity level recommendations for Pt/Pd but not cyanotype. Any suggestions would be greatly appreciated.

    Thanks,

    Ash