Platineand gum (Re: Gambling PVA Size for gum over pt/pd; Was: Re:Suggestions for sizing gum in an apartment
That's interesting. Platine is an interesting paper, in that (IME,
printing on it with gum) it has a crisp surface that's also
absorbent, as opposed to the Arches bright white, which is crisp and
less absorbent. I decided against using Platine in gum printing
because it didn't behave as other papers when using occasional
measures to develop stubborn areas in a print, like using hot water
or ammonia to bring out details in shadows, etc. Most papers, these
treatments do just what you'd want them to, gently bring out the
details without disturbing the print. On Platine, I found that the
hot water or the ammonia blasted right through the gum layer and the
paper, bringing pigment clear through to the back of the paper and
leaving a big white hole in the image. I've never had that happen on
any other paper, and decided I didn't want to mess with a paper that
was that finicky, as well as that expensive.
That's just a by-the-way about Platine, and I almost never use extra
measures any more for bringing out shadow detail, so maybe would like
Platine better now. Anyway, glad it's working for your gumovers.
kt
On Aug 24, 2009, at 9:45 AM, Jeremy Moore wrote:
Just as an fyi for the archives, this print is actually on Arches
Platine and not FAEW.
On Mon, Aug 24, 2009 at 11:29 AM, Katharine Thayer
<kthayer@pacifier.com> wrote:
Excellent, Jeremy, thanks for showing. 1:1 sounds about right for
that paper, though it didn't work well for the crisper Arches
bright white, glad it worked out for you. Happy printing!
Katharine
On Aug 24, 2009, at 8:38 AM, Jeremy Moore wrote:
It seems like we usually don't get too many updates on the
questions asked here so I thought I would provide one. I started
printing using the Gamblin PVA Size diluted 1:1 as size for gum
over pt/pd prints. How did it work? Better than I would have ever
hoped. It took me 20 minutes to go from a dry, unsized pt/pd print
to dry, sized paper ready to coat with gum.
The Gamblin PVA Size makes for a glossier print than my gelatin
sized gum overs, which is a plus to me.
Here's a scan of my first attempt using this stuff:
http://www.flickr.com/photos/jeremymoore/3852042627/
On Wed, Aug 19, 2009 at 11:07 AM, Jeremy Moore
<jeremydmoore@gmail.com> wrote:
If I can get out of a weekend out of town I'll get down to some
serious tests this weekend, but at the very least (if the store
does have Gamblin PVA Size as they said they did) I'll try sizing
and printing with the Gamblin PVA Size tonight on a small print.
On Wed, Aug 19, 2009 at 11:04 AM, Paul Viapiano
<viapiano@pacbell.net> wrote:
It works well with Fabriano EW.
Dilution ranges from full strength to 1:2, and some use it before
the first layer while others lay down a layer first, then size, esp
with a cyanotype first layer. Some even use a diluted coat between
layers, you'll have to see what works for you, if at all.
Katharine, I wasn't referring to you when I mentioned people using
the wrong product. There was a forum where folks were obviously
misunderstanding and using PVA adhesive instead of gum arabic,
thinking that that is what would prevent staining. It was a very
mixed up affair ;-)
Oh...and I still owe you an email. I've been very busy lately and
am behind on my replies...apologies.
Paul
----- Original Message -----
From: Jeremy Moore
To: alt-photo-process-l@usask.ca
Sent: Wednesday, August 19, 2009 8:52 AM
Subject: Re: Suggestions for sizing gum in an apartment
Thanks for the update Katharine. Fabriano Artisitico is a crisper
surface, but the Arches Platine and BFK Rives (I have some of that
hanging out) aren't so the Gamblin PVA Size may work for me. I'm
definitely one to just give it a go and see how it works for me
anyway--tried doing gum over without a size last night, but the
stain was unsightly.
On Wed, Aug 19, 2009 at 10:44 AM, Katharine Thayer
<kthayer@pacifier.com> wrote:
I'm one who tried it (and yes, I did try the right product) and
didn't like it. I used it at full concentration, since one person
who uses it successfully applies it at full strength, and it gave
me a hard, shiny surface that the gum didn't stick to well, and
even diluted by half it was still too plastic-y for my taste ; any
less didn't provide enough sizing. In a conversation here, (too
hurried to look it up in the archives) I think we agreed that it
probably depends a lot on the paper; Jim uses a more absorbent
paper and the stuff soaks in more, while I use a paper with a very
crisp surface (Arches bright white) and the stuff sits more on
top. So I think it's probably a matter of playing around with
concentrations until you get a combination that works with your
paper. While I didn't like it for my own work with my own
materials, I would definitely recommend it for people looking for a
nontoxic size; I know it works like a charm for several people, and
I certainly wasn't intending to discourage anyone from trying it,
simply reporting my own experience with it.
Katharine
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