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Photo Flo Shelf life?
Old 04-25-2005   #1
joeyjoe
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Photo Flo Shelf life?

How long's it good for? I've got a bottle of the stuff that's been sitting around for about a year and wondering if I should get some new stuff.
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Old 04-25-2005   #2
kbg32
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It is fine. I used to work in a large camera store selling darkroom equipment and supplies.
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Old 04-25-2005   #3
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As a professional photographer of over 30 years, I would not hesitate to use PhotoFlo from my big jug that goes back to the 1960's. It is just a wetting agent. No active chemicals.

Diluted tank solution photoflo can get dirty though in a tank, since its purpose is to lower the surface tension of water, any dirt that touches the surface of the liquid will immediately fall in.
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Old 04-25-2005   #4
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I found a bottle not too long ago in a box of old darkroom stuff. One of the first bottles I bought, back in 1980. I used it, and it works just as good as new.
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Old 04-25-2005   #5
pshinkaw
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I'm still using a bottle of Photo-Flo I bought back in 1983. It replaced a bottle I originally purchased in 1968. Too bad they don't sell it in very small bottles.

-Paul
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Old 04-25-2005   #6
jlw
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I've got one with George Eastman's handwriting on the label. Go with it. Photo-Flo is nothing more than a very pure detergent, so there isn't anything in it that's likely to spoil or go bad as long as you keep it tightly capped so it doesn't just evaporate!
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Old 04-25-2005   #7
rover
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When I bought mine the sales person declared that it was a lifetime supply. I am still around, and it is still good.
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Old 04-25-2005   #8
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Alright, into the soup it goes!
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Old 04-25-2005   #9
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Yup, my Photoflo is from the 70's and it still works fine!

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