[Fwd: Gelatin (waterproofing)]

> Thanks Richard, that is much like what I'm looking for.
> My first thought was to try some of the waterproofing
> solutions that can be obtained from outdoor stores.
> A spray "lacquer" may be a better avenue for investigation.
>
> I also wonder if a cyanoacrylate solution will penetrate a
> gelatin layer and make it impervious to water.
>
> I'm not attempting to archivally protect a display print,
> so it won't matter what the long term effect will be.
>
> all the best,
>
> Phillip
>
> Richard Knoppow wrote:
>
> > ----- Original Message -----
> > From: "Phillip Murphy" <pmurf@bellsouth.net>
> > To: <alt-photo-process-l@sask.usask.ca>
> > Sent: Sunday, December 21, 2003 2:28 PM
> > Subject: Re: Gelatin (waterproofing)
> >
> > > Thank you for the information. However, in this
> > particular case,
> > > that quality is especially desired.
> > >
> > > I'm looking for a means of keeping water from
> > > effecting the gelatin layer, perhaps a coating of some
> > > kind but it would need to be an extremely thin one.
> > >
> > > I'm hoping for a solution that would render the gelatin
> > > impervious to water.
> > >
> > > best regards,
> > >
> > > -Phillip
> >
> > Many years ago Kodak made a product called Kodak Print
> > Laquer. I remember using it but don't know what was in it.
> > It could be sprayed on the surface of a print or the entire
> > print could be dipped in it. If used only on the surface of
> > an fiber print it would serve mainly to protect the surface
> > of the print from abrasion since both the support and Baryta
> > layer are permeable.
> > I also remember some ancient publicity photos from a
> > family business which had probably been dried and ferrotyped
> > on a drum dryer. The prints curled tightly and the surfaces
> > had cracked so that they looked like dried mud. These prints
> > were probably no more than 10 to 20 years old at that time.
> > Laquer may make sense for protecting displayed prints but I
> > don't think its recommended any more for thos which are to
> > be stored archivally.
> > Krylon, and others, make spray-on print laquers, both
> > shiny and matt finish.
> >
> > > Ryuji Suzuki wrote:
> > >
> > > > From: Phillip Murphy <pmurf@bellsouth.net>
> > > > Subject: Gelatin (waterproofing)
> > > > Date: Sun, 21 Dec 2003 07:51:38 -0600
> > > >
> > > > > Is it possible to prevent a dried gelatin layer from
> > taking up
> > > > > moisture from the atmosphere? Is it possible to
> > prevent
> > > > > water in contact with the layer from swelling the
> > gelatin?
> > > > > (In essence, waterproofing the gelatin)
> > > >
> > > > "I don't know whether it is possible but it is certainly
> > undesirable."
> > >
> > >
> > ---
> > Richard Knoppow
> > Los Angeles, CA, USA
> > dickburk@ix.netcom.com
Received on Mon Dec 22 19:11:19 2003