[alt-photo] Re: PVA for SIZE & GUM ?

[Keith Gerling]

heh - the race is on!!

On Thu, Mar 4, 2010 at 12:01 PM, Loris Medici <mail at loris.medici.name>wrote:

> Henk, I've just moved and my darkroom is a mess right now. Also, I'm
> importing a NuArc 26-1KS, will have it installed in my studio next
> week or the week after the next. So I can't work right not, but I'm
> determined to try the PVA paper/wood glue (not Gamblin PVA size!) I've
> been using recently for sizing paper, just like you describe - since
> it's on the thick side. Not like others describe Gamblin size... Will
> let you know. (If someone else doesn't try it before me...)
>
> Regards,
> Loris.
>
> 2010/3/4 henk thijs <henk.thijs at hetnet.nl>:
> > Keith,
> > Is this in your opinion a 'yes' to my question of using the PVA for both,
> just with a different dilution?
> > thanks,
> > Henk
> > ------------------------------------
> > www.thijs-foto.com
> > ------------------------------------
> >
> > On 4 mrt 2010, at 18:24, Keith Gerling wrote:
> >
> >> Paul,
> >>
> >> I think PVA size is nothing but diluted PVA glue.  The size looks a
> little
> >> on the thin side to use as a substitute for gum in an emulsion, but the
> >> thicker glue seems to work.
> >>
> >>
> >>
> >>
> >> On Thu, Mar 4, 2010 at 10:56 AM, Paul Viapiano <viapiano at pacbell.net>
> wrote:
> >>
> >>> Henk...
> >>>
> >>> There's always been some confusion over this on this particular list,
> since
> >>> some substances known as PVA (glues, etc) have been used by
> experimenters to
> >>> act as the colloid, as gum arabic serves in the process.
> >>>
> >>> However, the PVA size that we have been adopting is a different animal.
> >>> Gamblin is the only brand I've seen and the only one I've used. It is
> very
> >>> liquid-y, much like the consistency of water or milk. It is sold mainly
> as a
> >>> size in the preparation of linen and canvas for subsequent oil
> painting.
> >>>
> >>> Jim Larimer and Steve Dowell first mentioned this product and I started
> >>> working with it, since I was looking for something that didn't involve
> >>> formaldehyde, glut or glyoxal.
> >>>
> >>> I would not try using this product as a gum arabic substitute. I have a
> >>> bottle of glue here labeled "PVA adhesive" for bookbinding and such,
> but the
> >>> product we are talking about is called "PVA size", two totally
> different
> >>> things for our purposes and intents.
> >>>
> >>> Paul
> >>>
> >>>
> >>> ----- Original Message ----- From: "henk thijs" <henk.thijs at hetnet.nl>
> >>> To: "The alternative photographic processes mailing list" <
> >>> alt-photo-process-list at lists.altphotolist.org>
> >>> Sent: Thursday, March 04, 2010 8:23 AM
> >>> Subject: [alt-photo] PVA for SIZE & GUM ?
> >>>
> >>>
> >>>
> >>> Dear List,
> >>>> Made curious about the PVA discussion (I remember threads in 2007 a.o.
> >>>> Katharine and David) about sizing i.s.o. gelatine and
> glyoxal/formaldehyde.
> >>>> But some years ago i mentioned the belgian gummist Jean Janssis ( very
> >>>> impressive gumprints of about 80 to 100 cm), he told me he used MOWIOL
> (PVA
> >>>> 8-88) from Kremer  Pigmente not for sizing but in stead of gum arabic.
> >>>> He gave me some data, i made some tests, and yes , it works; it was a
> bit
> >>>> messy, and i preferred to work with gum arabic.
> >>>> My question is : can we use this PVA stuff for sizing and
> gum-dichromate ?
> >>>> regards,
> >>>> Henk
> >>>>
> >>>>
> >>>>
> >>>> ------------------------------------
> >>>> www.thijs-foto.com
> >>>> ------------------------------------
> >>>>
> >>>> On 4 mrt 2010, at 17:03, Jeremy Moore wrote:
> >>>>
> >>>> Dan,
> >>>>>
> >>>>> If you're in a college town check out the art store the students
> >>>>> frequent.
> >>>>> They sell the 32oz Gamblin PVA Size at the unaffiliated school art
> store
> >>>>> here for $19.99, which is cheaper than I have been able to find it
> >>>>> online--I
> >>>>> believe Jerry's is right over $20 (plus shipping, though I guess I
> have
> >>>>> tax
> >>>>> to deal with). One of the local profs does use this stuff in his
> classes,
> >>>>> though, so that may be the reason why we seem to have it in
> abundance.
> >>>>>
> >>>>> -Jeremy-
> >>>>>
> >>>>> On Thu, Mar 4, 2010 at 9:39 AM, Diana Bloomfield <
> >>>>> dhbloomfield at bellsouth.net
> >>>>>
> >>>>>> wrote:
> >>>>>>
> >>>>>
> >>>>> Dan,
> >>>>>>
> >>>>>> I've used only the Gamblin PVA, and most art stores sell it.  We
> have a
> >>>>>> Jerry's Artarama here,  but you could just order it online.  I think
> >>>>>> Jerry's
> >>>>>> is the lowest price I've seen, but even my small local art store
> here
> >>>>>> sells
> >>>>>> it, too, which is more convenient, but not as inexpensive.  Wherever
> you
> >>>>>> are, check out your local art supply store, or just order it online.
> >>>>>>
> >>>>>> Diana
> >>>>>>
> >>>>>>
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