Thickening the developer?

Discussion in 'The Darkroom' started by rbaek, Oct 16, 2009.

  1. rbaek

    rbaek TPF Noob!

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    Hey Everybody.

    I like to experiment a lot in the B&W-darkroom.
    At the moment im working with different concentrations of developer. I am thickening them using cornstarch, though it doesn't really seem to do the job as well as I would like it to.

    Do any of you, have any experiences with any types of thickening agent for developer??? Something transparent that works at low temperatures.

    Thanks,
    Rasmus
     
  2. ann

    ann No longer a newbie, moving up!

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    why would you thicken a developer?.

    the developer has to move over the film in random fashion and i am having a hard time visually seeing a thick solution doing that.

    have you experiment with different ratios of developers ?
     
  3. rbaek

    rbaek TPF Noob!

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    Hey Ann.

    Thanks for the reply. Yes i work with different ratios. I am applying the developer to the paper using brushes, eye-dropper etc. so im looking for a way to thickening the developer to have more control of the image.

    /Rasmus
     
  4. compur

    compur No longer a newbie, moving up!

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    gelatin?
     
  5. rbaek

    rbaek TPF Noob!

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    yeah but don't i destroy the developer by heating it up?
     
  6. rbaek

    rbaek TPF Noob!

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    so no one knows of a thickener that works in cold liquid?
     
  7. compur

    compur No longer a newbie, moving up!

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    Maybe if you tried a cooking forum ...
     
  8. Derrel

    Derrel Mr. Rain Cloud

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    cornstarch, arrow root, or maybe water that comes from boiling potatos or pasta--all proven cooking tricks for thickening liquids. I mean, if you're making gravy or soup, I can see a need to thicken the liquid in the case of cooking, but why would you need to thicken the "soup" you develop your prints in? I don't get it...
     
  9. jbylake

    jbylake Dodging the Men in Black Supporting Member

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    I would think that the "residue" in cornstarch would contaminate the developer, to the point that it would ruin the prints?

    J.:mrgreen:
     
  10. Torus34

    Torus34 No longer a newbie, moving up!

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    Acrylic extender medium.
     
  11. ann

    ann No longer a newbie, moving up!

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    why not just use "chemical painting" on the print after the exposure?
     
  12. CSR Studio

    CSR Studio TPF Noob!

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    I have often painted developer on a print but I don't thicken the developer. Get a good artist brush with thick bristles. Works great.
     

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