Cyanotype over pt/pd

Discussion in 'Alternative Processes' started by Jarvman, Nov 1, 2011.

  1. Jarvman

    Jarvman Member

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    Hello All, Was hoping for some help on this. I've made some cyanotype over pt/pd prints this evening and have run into yellow highlight staining. The paper isn't washing back to white in the highlights. This is unlike what happened with a straight cyanotype test, which cleared back to paper white. What could be the cause of this? Is there a remedy or any way of avoiding this in future?

    Cheers,
    Gareth
     
  2. Jadedoto

    Jadedoto Member

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    I've never done cyanotype over pt/pd before. I'd like to see what it looks like... My first thought is maybe there's a reaction between what is left from the pd/pt printing and the cyanotype chemicals. Looking up some old threads, it looks like there could be some reaction. But FAC is really soluble in water, so I don't know what it would stick to the paper like that. Is it completely staining and not washing out at all? (I'm looking at this: http://www.apug.org/forums/forum42/49215-cyanotype-over-palladium.html which may or may not help out all that much)
     
  3. photomc

    photomc Member

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    check with scootermm (Matt) here on APUG, he has some that worked very well - see them here