RE: Want more glow in Pt/Pd

Hi Judy,

Thank you for the information re: Demachy. Perhaps with a little
research we can discover the nature of "Vernis Soehnee."

Am also thinking of testing combinations suggest by Chris of gum
arabic and egg white.

Best,

Sandy

>Sandy King wrote:
>
>>>I have tried various things to recapture the *wet* look of Pt./Pd.
>>>prints, including spray coatings with Crystal Clear Acrylic, surface
>>>coating with Gamblin and Renaissance Wax, soaking in Liquitex Acrylic
>>>Gloss Medium, etc. but the results with these products, though they
>>>give a little snap to the print, fall short of what I would like to
>>>see.
>
>In one of his early articles about gum, Demachy described applying
>"Vernis Soehnee" which, he said, restored the depth of the wet print
>without glazing the paper whites. I tried to find that formula for
>years.. aided, among others, by Gene R. of this list, who took it up
>with his very obliging research library. I've also found several
>references to it in old painter's recipe books, where it's called a
>resin. Since alcohol is the solvent, it figures to be shellac or
>shellac plus, but my experiments with shellac (of various kinds,
>including "white") were not successful.
>
>The best I found for the purpose so far was a diluted gum arabic
>(about 1:1), sheeted down the paper (method of application is
>important). Also some of the newer alkyd varnishes (Gamblin, eg) are
>promising... On the other hand, for gum printing, the best strategy
>may be simply multiple coats of sufficient intensity of color that
>extra would be too much.
>
>However, Sandy, with your language and research skills, you may find
>the answer... (tho there's also the possibility that Demachy was
>overstating the case...and/or that it wouldn't work on a gelatin
>size, since he did not add size to paper, or if so, used starch.)
>
>thanking you kindly in advance,
>
>Judy
Received on Wed Nov 10 19:40:20 2004