I get box of Kodabrome and Panalure papers, one box each. I did some test run and both papers are fogged. I remember some say we can add some chemicals to darkroom solutions and try to revive them. Not sure if anyone has had success or it is just a waste of time?
Benzotriazole and potassium bromide are 2 common restrainers. Benzotriazole is often used to suppress fog in paper developers, but tends to shift the image tone to colder. Potassium bromide tends to shift tone towards warmer tones. Depending upon how accessible these chemicals are for you, it may be worth trying..
Neither of those papers will be any good. Unless they have been frozen, nothing will rescue. If you opened the Panalure with safelights on it will be fogged. Panalure is panchromatic, like film, no safelights.
Neither of those papers will be any good. Unless they have been frozen, nothing will rescue. If you opened the Panalure with safelights on it will be fogged. Panalure is panchromatic, like film, no safelights.
Is your paper Kodabrome or Kodabromide?
If it is Kodabrome, that paper was a developer incorporated paper primarily designed to be activated rather than developed in trays, although tray development was possible.
Developer incorporated papers typically don't last well.
Kodabromide would be older, and may be worth working with.
The original Panalure was a fiber base paper available in single and double weight in a couple different surfaces. When RC paper came along Panalure RC debuted and the double weight fiber base version became Panalure Portrait. These papers produced beautiful black and white prints from color negatives. The Panalure Portrait was amazing paper, one other thing is it was very responsive to toning. Great stuff.
Anyway this stuff is pretty antique, nice to experiment with but the base fog will be enormous, like starting with a gray card.
I have had some success with lith printing old paper. In the "Lith" process, the prints are snatched from the developer before the white areas can develop. After fixing the white areas may remain white.
I have old kodabrome paper that is graded. While I question whether it is worth the time, I have been able to restore it by treating with a ferri-bromide bleach, then wash and dry (in total darkness). They reverted to something like their original grade (maybe a bit less because of age). This treatment before using is far better than just putting BZT in the developer, as the latter does not, I believe, deal with loss of DMAX on account of fogging.