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

[Paul Viapiano]

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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