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  1. #61
    Aurum's Avatar
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    Quote Originally Posted by Photo Engineer View Post
    Guys;

    Alcohol was used as a DRYING AGENT not a WETTING AGENT. These two are unrelated functions.

    You treat with a wetting agent or surfactant to prevent water spots from minerals and contaminants in water. You use alcohol to promote rapid drying.

    There is some overlap in function, but they are not identical.

    PE
    As long as you know the difference when you're getting the beers in.........
    "Flatter Me, and I May Not Believe You. Criticize Me, and I May Not like You. Ignore Me, and I May Not Forgive You. Encourage Me, and I Will Not Forget You."

  2. #62
    Sirius Glass's Avatar
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    Quote Originally Posted by Sirius Glass View Post
    PE,

    Perhaps Black & White chemistry should be split into two subgroups:
    Black & White Chemistry traditional - by the book
    Black & White Chemistry experimental - at your own risk
    Steve
    Probably should have stated
    "Black & White Chemistry experimental - at your own risk"
    as
    "Black & White Chemistry experimental and on the cheap - at your own risk"

    Steve
    Warning!! Handling a Hasselblad can be harmful to your financial well being!

    Nothing beats a great piece of glass!

    I leave the digital work for the urologists and proctologists.

  3. #63
    Photo Engineer's Avatar
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    Quote Originally Posted by Aurum View Post
    The risk of using household (Dishwashing liquid) or personal care products (Handwash) is that perfume aside, they contain shedloads of salt to thicken them, and the surfactants commonly used will often dry down to a sticky / greasy residue. The only household product that would possibly work is shower spray. This is the stuff that you spray on the inside of a shower door to prevent water marks and staining. That works like photoflo, and is probably very similar.
    I don't use photoflow, however. I use Ilfotol instead. Same sort of thing, easier to get locally, works in the same way.
    The shower spray that contains Sodium Hypochlorite will dissolve the emulsion completely and leave a mess behind! Don't ever use that.

    PE

  4. #64
    richard ide's Avatar
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    Would that be one of the chemicals you can measure with a teaspoon??
    Richard

    Why are there no speaker jacks on a stereo camera?

  5. #65
    Mike Wilde's Avatar
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    I hate to add fuel to this ongoing fire, but what if I mention Tween 20? I understand it is a wetting agent; I bought it intending for aid in hand costing for alt process work, but have yet to use it.
    my real name, imagine that.

  6. #66

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    Quote Originally Posted by Sirius Glass View Post
    Here we go again.

    Please read the earlier post on a thread.

    Steve
    LOL

  7. #67
    Photo Engineer's Avatar
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    Quote Originally Posted by Mike Wilde View Post
    I hate to add fuel to this ongoing fire, but what if I mention Tween 20? I understand it is a wetting agent; I bought it intending for aid in hand costing for alt process work, but have yet to use it.
    The Tween series is used by some companies as their wetting agent and is perfectly satisfactory in pure form as used by these companies.

    I've noted that the Photographers Formulary has a proprietary product that is called Formaflo. I've tried that with good results as well.

    PE

  8. #68
    Photo Engineer's Avatar
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    Quote Originally Posted by richard ide View Post
    Would that be one of the chemicals you can measure with a teaspoon??
    Richard;

    At one time, the cap of the Photo Flo bottle was its "measuring spoon" and the instructions called for one capful in a quart (or gallon, I forget) of water. This was so long ago. My goodness, I used to use it with the TriChemPak and with Versatol. So there!



    PE

  9. #69

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    I'm sure the Photoflow cap is more precise than using measuring spoon!
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

  10. #70
    richard ide's Avatar
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    Ron,
    You are reminding me of how old (chronologically anyway) I am.
    Richard

    Why are there no speaker jacks on a stereo camera?



 

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