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Squeegees... why?

I bought a gallon of 1:600 Photoflo about 20 years ago and mix it 1/2 strength...

Just be aware that the Photo-flo 600 uses a relatively toxic chemical in it that the other Photo-flo solutions do not have. Just avoid touching it, dripping it around the darkroom, etc.

BTW -- here at the university, I am working on a gallon of Photo-flo 2100. I use 7 ounces to make a gallon of stock solution, then use the stock solution at one ounce to a gallon of water! (it does not have the toxic chemical that the 600 has).