From: Christina Z. Anderson (zphoto@montana.net)
Date: 09/02/02-08:23:13 PM Z
Hi Keith! No, this is great you posted this to the list, because we
were discussing using silane as an additive to improve adhesion in liquid
emulsion, and since the liquid emulsion topic comes up every couple months,
it is timely.
Do you think it may be worth a try to use just regular old PVA in the
mix? Now, I did try some experiments mixing stuff in emulsion--powdered
pigments, for instance, and it still worked great even tho NEVER use red
powdered pigment--it looks gross. Powdered pigment into emulsion goes a
looooooooooonnnng way. But if Jack says to mix heavy cream into it to
emulsify, I don't know why a little PVA wouldn't do something...but I had no
problem at all getting emulsion to adhere to aluminum that was 1)sanded 2)
coated with an oil based polymer varnish, to which I also added gold
pigment...have not tried gum, tho.
Chris
----- Original Message -----
From: "Keith Gerling" <keithgerling@att.net>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Monday, September 02, 2002 11:52 AM
Subject: silane
> Hi Christina,
>
> Remember me from a while back? (I think it was you!) We were both trying
to
> find a source for some of that Dow-Corning Z-6040 silane product? Anyway,
I
> finally found it. In a word, I find it to pretty much worthless, having
> spent about a month with some chemists trying to figure it out. I'd be
glad
> to send some to you if you like and are still interested.
>
> I forgot your intended purpose, but you might be interested in mine: I'm
> trying to print a series of grain elevators on aluminum panels using gum
> bichromate. When it works, the metal shining through and around the
pigment
> pretty much captures the actual look of a metal grain elevator. I'm
working
> on about 30 of these pictures, of which about half were all located in
> Montana!
>
> Let me know if you still want this stuff (and my advice, unless you know
> anything about it, is to forget it!)
>
> Later,
>
> Keith
>
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