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Digital BW, The Print

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Re: [Digital BW] Re: Edwal LFN & Photo-Flo 200 for UK and EU users - call for interest

2010-01-28 by -= Chris =-

Hi Paul,  back in the days of B&W, I used either Triton X-100 or Igepal 630, never had a problem - I left out the propylene glycol.  I usually prepare an aliquot if the Triton and just used a several drops per liter, knowing the ration of my preparation.

----- pr_roark  wrote:
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>        -= Chris =-  wrote:

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> > PhotoFlo is nothing but a cheap wetting agent. ...

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> The MSDS (Material Safety Data Sheets) are a very good way to find out what things are.  Here is the guts of the Kodak Photo Flo 200 MSDS:

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> http://www.paulroark.com/BW-Info/PF200.jpg

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> Photo Flo 200 is 60 - 70% water, 25 - 30% propylene glycol, and 5 - 10% a proprietary surfactant.

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> Some of the nice things about Photo Flo 200 are that it's readily available and has been used with imaging substrates for years.  The glycol is a significant part of the ink base, and PF200 is a convenient way to get it.  

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> Paul

> www.PaulRoark.com 

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