Digital BW, The Print

Thanks Paul for the clarification. 

I'd rather stick as close as possible to your formulation. That allows much better sharing of experience. A logical approach would then be to put in 1/3 of the Photo-flo 600 and add extra glycol.

Unfortunately having a PhD in physics still keeps me a layman in chemistry. So I checked glycol in wikipedia and it's a category name not a single material. Do you mean ethylene glycol? As it is anti-freeze it should be easy get.

Joost


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "pr_roark" <paul.roark@...> wrote:
>
> Joost,
> 
> If there is not enough glycol in the mix, the base will cloud.  The Photo Flo is not in the mix just for the surfactant.  The glycol is an active part of the base.  So, whereas the PF 600 has 3 times the surfactant per unit, if you cut back the formula that much you might end up with a cloudy mix.  If you use the same amount of PF 600, you have a lot of that particular surfactant in there.  It may not matter, of course.  I just have not tested it.