U of S | Mailing List Archive | alt-photo-process-l | Re: plexglass face mounting

Re: plexglass face mounting



How about using the plexiglass like a usual glazing method, with a spacer to keep the print from mooshing up against the plexi, so you wouldn't have the unevenness of the print surface causing a problem with contact that Keith was describing. This would provide the protection you need, although it would eliminate the direct experience which is what I like about presenting prints unglazed. To me, glazing a print on aluminum would defeat half the purpose of printing on an unusual surface in the first place, but that's just me.

I don't know about yellowing, but some panes of plexi I came across when sorting and packing to move, that had been around for 10 years or so, were scratched and cloudy, and I sent them to the dump rather than moving them. They hadn't been handled or moved around a lot; they'd simply been sitting in a storage loft for years. It's just an observation, FWIW. The fact that plexi scratches easily, which someone else mentioned, would be another reason to simply use it as a glazing material so it could be replaced if necessary, rather than affixing the print to it.
Katharine


On Dec 11, 2006, at 11:45 PM, Loris Medici wrote:

Under plexi, face up (image side sticks to plexiglass).

It's the first time that I hear plexiglass (more correctly: polymethyl
methacrylate - plexiglass is a registered trade name) isn't archival.
AFAIK, it is the material used in intraocular lenses (my mother has this
kind of lenses inside her eyes because of her cataract problem) and hard
contact lenses. I absolutely don't think they would put a material that
clouds / yellows with time inside our eyes - would you? Plexiglass and
acrylic medium are essentially the same material and again AFAIK acrylic
paint / medium is considered as being quite stable / achival (depending
on pigment of course). Probably all this depends on quality / make /
impurities... I personally see high quality plexiglass as an archival
material.

Regards,
Loris.

-----Original Message-----
From: Judy Seigel [mailto:jseigel@panix.com]
Sent: 12 Aralők 2006 Salő 00:33
To: alt-photo-process-l@usask.ca
Subject: Re: plexglass face mounting



"Plexiglass face mounting" means mounting ON the plexi or UNDER the
plexi,
face up? Either way, I'm surprised there's been no mention of plexi
discoloring (clouding, yellowing) in time -- maybe not in 5 years, but
surely in 15 or 20. Unless there's a new plexi that's "archival"?

J.