Digital BW, The Print

The Wilhelm tests indicate that some of them do very well.  However, I would not count on those tests being very reliable.  In my view there are just too many variables. 

I looked into accelerated age testing briefly, and most of it appears to be rather speculative.  The most common tests do not appear to do cycling through both humidity and temperature changes that would cause the differential expansion and the cracking that, in the real world, I think I see with very old photos.  The photo digital restoration work I've done for the local museum and some individuals indicates to me that micro-cracking of coated media is a real problem.  But, I'm not a conservation expert.  I hope some of them chime in on this issue.

Paul
www.PaulRoark.com 


Cdtobie <CDTobie@...> wrote:
>
> I've seen resin coatings turn brittle and shatter off the paper in  
> window exposure tests. ...
 
>  "wlh_1" <will@...> wrote:
> 
> > With all of the talk about longevity of papers I was wondering how  
> > do Resin Coated (RC) photo(inkjet) papers stack up?