Re: Cyanotype Sensitiser Dregs On The Bottom

My best guess is that if there is sludge or crystals in the sensitizer it
could cause irregularities in the application of the coating. I would decant
the sensitizer and filter it again.

----- Original Message -----
From: "Michael Koch-Schulte" <mkochsch@shaw.ca>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Friday, January 07, 2005 5:20 PM
Subject: Re: Cyanotype Sensitiser Dregs On The Bottom

> I think you may be right it's probably some late forming crystal. For the
> most part the bottle looks clear. I only waited about an hour before I
> filtered it. It's not that much material to be honest. I could always do
> another filtering. What affect would including some of the sludge have on
> the look of the print?
>
>
> ----- Original Message -----
> From: "Scott Wainer" <swphoto@verizon.net>
> To: <alt-photo-process-l@sask.usask.ca>
> Sent: Friday, January 07, 2005 3:19 PM
> Subject: Re: Cyanotype Sensitiser Dregs On The Bottom
>
>
> > Hi Michael,
> >
> > When you mixed the sensitizer, did you use distilled water? I had a
> similar
> > problem when using tap water. Did you filter it before putting it in the
> > bottle? Also, I found that if the sensitizer is bottled soon after
mixing
> > the green crystals continue to form. I usually mix the sensitizer and
let
> it
> > sit overnight in an open beaker in the dark and filter it (through 2
coffe
> > filters) before putting it in a brown bottle.
> >
> > Hope this helps, Scott
Received on Fri Jan 7 17:35:53 2005