[alt-photo] Re: PVA addn. to pt/pd soln.

Loris Medici mail at loris.medici.name
Wed Dec 16 17:31:38 GMT 2009

For the records: (maybe there are some that can't find the suitable
PVAL, thinking that being a polymer there isn't a single PVAL
around...) pure isopropanol could also aid absorption by reducing
surface tension BTW... I use it (occasionally) with gum emulsion
(easier spreading / smoothing) and carbon tissue (to dissipate
micro-bubbles) with success.

Paul, PVAC and PVAL are both used as emulsifier / glue / sizing and
many more applications. As I said a couple of months ago: PVA, PVAC or
PVAL are too generic names to be useful (for our purposes)
designations. For instance, I have great success using a transparent
PVAC wood glue as sizing for gum (I totally left gelatin sizing, PVAC
sizing is quick!) whereas another printer can't use a PVAC glue *from
the same company* but marketed / purchased in another country...


2009/12/16 Paul Viapiano <viapiano at pacbell.net>:
> And DON'T confuse it with PVA SIZE...!!!!
> Please...we've been down this road before...
> Paul
> ----- Original Message ----- From: "BOB KISS" <bobkiss at caribsurf.com>
> To: <alt-photo-process-list at lists.altphotolist.org>
> Sent: Wednesday, December 16, 2009 8:55 AM
> Subject: [alt-photo] Re: PVA addn. to pt/pd soln.
>> Yup, PVA is polyvinyl alcohol.
>> BOB
>> -----Original Message-----
>> From: alt-photo-process-list-bounces at lists.altphotolist.org
>> [mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf
>> Of
>> joachim oppenheimer
>> Sent: Wednesday, December 16, 2009 12:12 PM
>> To: alt-photo-process-list at lists.altphotolist.org
>> Subject: [alt-photo] Re: PVA addn. to pt/pd soln.
>> Is "PVA" polyvinyl alcohol? Thanks for your response Joachim

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