Hand sizing paper for PtPd

Discussion in 'Alternative Processes' started by Deckled Edge, Feb 2, 2004.

  1. Deckled Edge

    Deckled Edge Member

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    Anyone out there have a link to an article on sizing your own paper?

    I purchased some Arches 88. It is absolutely the softest, smoothest, dreamiest, thirstiest paper imaginable. Without sizing it cannot be coated.

    It would have to be a tray method for one 11x14 sheet at a time, as I have no industrial troughs for the 22x30 papers.

    Thanks
     
  2. glbeas

    glbeas Member

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  3. rogein

    rogein Member

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    Here's Dick Sullivan's 'quick sizing' method:
    ---------------------------------------------
    Topic: Instant Sizing (1 of 6), Read 53 times
    Conf: Alt Photo Circle -- Host: Dick Sullivan
    From: Dick Sullivan (richsul@earthlink.net)
    Date: Tuesday, December 14, 1999 09:37 AM


    I worked up this method a while back. I would appreciated hearing from anyone
    else who tries it.

    Materials needed:

    plate glass coating surface

    Knox gelatin or deionized ossein.

    windshield wiper blade



    Optional: syringe and glass coating rod

    Making the gelatin

    put 1 to 3 grams of gelatin in a small bottle that is 100 ml to 200 ml.

    More geletin = more sizing. 1 gm = light sizing 3gm = moderate sizing.

    Add 100 ml of room temp water.

    Shake vigorously. (Put in back pocket and play Chubby Checker records.)

    Zap in Microwave for 10-15 secs.

    Shake

    Zap

    Shake

    Zap

    When it gets hot to hold let sit until no gelatin particles are visible through
    the bottle when held up to the light.

    (This sounds like a lot of work but in reality it can be done in a minute or two.
    it takes longer to descriobe than to do.)

    You can now put bottle and all in a tray of cool water to cool it down. Bottle
    and any left over gelatin can be put into a fridge and "remelted" in microwave
    later for use.

    You can now add a few drops of formaldehyde (not recommended) or glyoxal as a
    hardener.

    affixing the paper.

    Find a nice piece of 1/4 plate glass that is somewhat larger than the paper you
    will size. This is always a handy work surface for rod coating etc.

    Tape the paper to be sized down on the glass in "landscape mode." Tape completely
    covering the left and right edges.

    (Again this is a zip-zip quick procedure that takes longer to describe than to
    do.)

    Coating the paper. (right handed procedure. Lefties should stand on their head to
    do this.)

    Place the coating rod on the right hand side of the paper. Pour about 5-10 mls of
    gelatin solution against the rod. (a syringe works well for laying doen the gel
    against the rod.) Spread the gel around with the rod. (the rod is a spreader
    only, not a coater like in platinum coating. As soon as the paper is thoroughly
    wet, take the wiper blade on squeegee off the gel.

    Set paper aside. It will curl downwards making a slight arch. The paper will dry
    in a few minutes and you can usually pile the sized paper on each other without
    much trouble.

    Repeat.

    All of this sounds like a lot of trouble but it really isn't. Once you are set up
    you can size a piece of paper in less than a minute. Since you are not soaking
    the paper and only one side is wet, it dries rapidly. There is no messy dip and
    dunk, no lines with drippy bits, etc.

    --Dick
     
  4. Kerik

    Kerik Member

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  5. philsweeney

    philsweeney Member

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    Can anyone comment on arrowroot starch for sizing? I'd like to try and size the stonehenge rising (which is not working out for me) and the arrowroot starch method sounds easier.
     
  6. Deckled Edge

    Deckled Edge Member

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    Kerick,
    Thanks for the article. Where does one obtain glyoxal? What is it, and what precautions are required in its handling, heating and use?
    BTW YOU are the reason I'm in this mess, stripped of my net worth. I took your Yosemite Platinum course in 2000 and now have all my assets in potassium chloroplatinite. I won't stop until I get your fabulous results.
     
  7. Kerik

    Kerik Member

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    Hey GW,

    Ummm.... sorry? Although I hear this alot "it's your fault I bought a bigger camera, spent all my kids college money on platinum and palladium, my wife left me because I was always in the darkroom..."

    You can get Glyoxal from B&S, Artcraft chemical and probably other places as well. I don't know much more about it than what I posted before. It's thought to be less hazardous than formaldehyde, but I don't know that it's been studied nearly as much. I use formaldehyde as a hardener and wear nitrile gloves and a respirator with cartridges specifically for formaldehyde. Standard acid/gas type cartridges don't protect for formaldehyde.

    Hang in there. It'll come together if you really want it to. I'm teaching gum-platinum in Yosemite in December... Oh, nevermind.

    Cheers,
    Kerik