Re: Pt./Pd. question acid pre-soak

Eric, did the brush coating have the same final effect as a soak? I
don't have the space to hang multiple large soaked sheets, but could
easily dry them if they were brush coated. A bucket of 2% citric or
oxalic acid and a big foam brush and I could be in business.

jeremy

ps: I'm going to email about coming up and seeing the studio--got
sidetracked in this summer with a new job and lots of classes, but my
next 2 weeks are wide open.

Eric Neilsen wrote:

>Bob, In the test that I ran on the theory of acid pre treatment, I made a 2%
>solution of Oxalic acid and coated it on with a brush. I dried that paper
>and then coated it normally. As we can see that is quite different that a
>soak in an acid bath.
>
>I also was trying this on papers that already worked well for my process.
>There are times when I'll try and make a paper work but it would need to be
>quite specific.
>
>It would be quite interesting to note the change in pH of your solution
>before and after to see at what point it stops being effective.
>
>
>Eric Neilsen Photography
>4101 Commerce Street, Suite 9
>Dallas, TX 75226
>214-827-8301
>http://ericneilsenphotography.com
>
>
Received on Fri Aug 12 10:25:48 2005