[pure-silver] Re: Weird Film Issue - Part II

  • From: "Nicholas O. Lindan" <nolindan@xxxxxxxxxxxxx>
  • To: <pure-silver@xxxxxxxxxxxxx>
  • Date: Thu, 10 May 2012 13:24:52 -0400

Photoflo 600 is the 'industrial' version. It has 3x the concentration of Triton and uses ethylene glycol rather than propylene. It will suds-up just like PF200.

If there were to be an anti-foaming agent I'd lay odds it would be good ole' Dimethylpolysiloxane.

I add PF directly to a bottle of isopropyl alcohol. 13ml of PF600 to a quart of 70% isopropyl gives a stock that gets diluted 1:7 for use (1oz per 35mm film reel).

Nicholas O. Lindan
Cleveland Engineering Design, LLC
Cleveland, Ohio 44121

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