Storing undeveloped Pt/Pd paper

Discussion in 'Alternative Processes' started by gattu marrudu, May 26, 2009.

  1. gattu marrudu

    gattu marrudu Member

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    Hi,
    I noticed that undeveloped Pt/Pd solution tends to get brown and practically useless with time, even if kept in darkness.
    I just coated some test strips with high contrast Na2 Pd solution, pretty expensive stuff, but I cannot use them for a week - so I thought, would refrigerating/freezing help?

    Thanks
    gm
     
  2. Loris Medici

    Loris Medici Member

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    Combine the solutions and coat "right before exposure" for best results and consistency...
     
  3. Jim Noel

    Jim Noel Member

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    my experience is that once these papers are coated they should be used within 24 hours.
     
  4. Vaughn

    Vaughn Subscriber

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    Freezing would help -- but do not expect the exact same responce after thawing.

    Vaughn