Hownto use photoflow film development7/30/2023 ![]() ![]() If these stabilzers are heavily used and the formalin level drops through use, bugs can also grow. "Bugs" can even grow in C41 and E6 formalin stabilzers if the stabilzer is kept long enough to allow evaporation of formalin to cause the level to fall below the critical level to kill or retard bug growth. I just know that they can grow in the diluted working solution of any wetting agent. The text is still work-in-progress and not yet complete, however I would appreciate any early feedback on what is already written, so that I can tweak the rest of the text according to the comments and suggestions already received The PhotoFlow GIMP plug-in PhotoFlow currently. I also believe that the concentrate has enough anti-bug character that the bugs don't grow there, but I have no proof. This topic is intended to be a draft for a blog post or article about the usage of the PhotoFlow GIMP plug-in. I believe that this can only happen in diluted solution though due to carry in of 'bugs' from tap water, or from handling. You can see the growth as either thin threads of matter or slug like 'floaters' in the photo flo solution. This is true of any surfactant and should be watched for. They will burst, spread and vanish.Īs for keeping. I can give a short list here if anyone is interested, but I don't recommend them, as the photoflo will do the job (or any equivalent nonionic surfactant will do) even with the bubbles. There are low foam wetting agents available if you wish. Please watch out for them for the reason I gave above. Some other wetting agents sold for photography are ionic. This is another strike against using soaps or detergents as wetting agents and the reason why Kodak went to a nonionic surfactant in the current Photo Flo. Looking again at using soaps, I must add that soaps are ionic surfactants and can react in water with high calcium content to form scum. The presence of thiocyanate in the Sistan would make it very useful to use at the lowest possible dilution. It is good that there is a wetting agent in Sistan. Tom Lehrers "Periodic Table" was quite poetic as was his "Eternal Triangle" (I've forgotten the correct name of that latter song sung to a Liszt Rhapsody). Gee David, I thought some organic nomenclature was quite poetic and that some poetry was trash. I have not looked at Sistan data or MSDS for a year or so. If dilute enough, there would be no problem at all. Since Sistan contains a thiocyanate salt, I would personally want to rinse it before drying to prevent crystals from forming if nothing else. ![]() I was not aware that Sistan had any surfactant in it, and I also thought that it was recommended that the print be rinsed after use of Sistan. There are many substitutes for photo flo out there. Then your film or paper can stick together in humid weather. The disadvantage to using soaps is that they contain dyes and fragrances which can color or leave oily droplets on film and paper. The one other ingredient is a poly alcohol, also readily available. You can probably order it through the Formulary. Triton X 100 is a non-ionic surfactant that is readily available. The formula for Photo Flo 200 is in the MSDS. ![]()
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