Digital BW, The Print

Just this afternoon I ordered some Photoflo 600, the only version I can find here in the Netherlands (already difficult enough....). 

But Paul I don't fully understand your remark. The amount of surfactant is higher, so I can understands Mike's reasoning. However, In relation to the glycol you state: "So, you'd end up having to use more of the 600 to get that". So should I use more Photoflo 600 to get the glycol in order or less to get amount of sufractant right?

Joost

 


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Michael King <drmrking@...> wrote:
>
> Just to add to Paul's comment on Photoflo - the standard version in EU is
> Photoflo 600.
> As far as I am aware you can't get Photoflo 200 in EU off the shelf.
> 
> I used Photoflo 600 with Paul's C6 base and I added 50% of the amount in
> Paul's formula.
> Worked fine with HP and Eboni inks in R1900.
> 
> Mike
> 
> 2010/1/25 pr_roark <paul.roark@...>
> 
> >
> >
> > >... Is it the right version of Tergitol though?
> >
> > Tergitol 15-S-7 is what I found worked. See
> > http://www.dow.com/surfactants/products/second.htm for the listing of the
> > Tergitol family of surfactants.
> >
> > (Some internet sources suggested the S-5 variation; it was terrible.)
> >
> > > Have you tried/considered to get the Edwal LFN ...
> >
> > Edwal Scientific is in Chicago and might be able to point to other sources.
> >
> > Be sure to use Photo Flo 200, not 600. The 600 has a higher concentration
> > of surfactant per volume and a rather toxic form of glycol. The mix needs
> > the amount of glycol in the PF 200. So, you'd end up having to use more of
> > the 600 to get that.
> >
> > Paul
> > www.PaulRoark.com <http://www.paulroark.com/>
> >
> > 
> >
> 
> 
> [Non-text portions of this message have been removed]
>