I have found on-line some results of fading tests for different media including Polaroid image and emulsion transfer:

Media Experiments

I wonder if anybody performed similar tests but using different UV protection for image (glass, acrylite, etc.)

Some time ago, it was a little bit discussion here on Polaroid transfer longevity. I think it would be good to exchange ideas and experiences on this subject more often.

-- Marek Uliasz (uliasz@frii.com), March 01, 2001

Answers

I just found this thread a month ago or so. The issue of transfer longevity is a major concern for me. I'm about to think the best thing to do is to scan the transfers and have them printed as a reproduction. Several months ago, I spoke to a Polaroid technician who was amazed when I told her an image transfer I sold began to fade after a year. She thought it must have been hung in direct sunlight. Somehow, I got the impression that they should last well over 5 years (up to 20?) if hung in indirect light. At least that's according to this one tech rep. I would think the longevity for both the emulsion & image transfer would be the same as they are the same dyes. I, too, think it's a good idea to keep this topic current! Thanks.

-- LRigge (lbrig@trivalley.com), September 26, 2001.

As far as non-framed storage, I have some 6 year old prints I shelved in a dark cabinet that have not faded. I have sold some to a business that have hung in flourescent light with no protective coating used, and they have not noticeably faded. I also touch them up with pastels and watercolor pencils to brighten slightly. I think the key is the paper. I use Arches cover and my theory is this. The dyes seem to bind with the fiber much like dye on clothing. (I believe it is rag) and form an archival bond. I have tried to fade them with the vinegar bath Carr writes about and can't get them to fade. Also set them in direct light for days with no fading. This is unscientific, but the less absorbtion papers seem to let the dye set on the surface of the print, whereas with Arches it seems to seep into the fibers of the paper and I figure if the paper is archival it makes the binding with the dyes strong.

-- jacqueline dickey (jdickeybird@yahoo.com), December 30, 2001.