RE: plexglass face mounting
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
From: Judy Seigel [mailto:email@example.com]
Sent: 12 Aralık 2006 Salı 00:33
Subject: Re: plexglass face mounting
"Plexiglass face mounting" means mounting ON the plexi or UNDER the
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"?