Digital BW, The Print

scott_now_coming wrote:

> Mainly, sealing the print surface from  oxidation.

I understand that, and also from UV. My point is another one: we use 
archival paper and archival pigments. What tells me that the probably 
complex components of a varnish are in themselves archival too? That the 
varnish will not deteriorate? That its chemicals won't deteriorate the 
print? That it won't get brittle and take pieces of ink with it? etc.

(I sometimes also wonder about the coatings that are applied on 
otherwise very archival papers.)

Does Wilhelm test varnishes too?

Louis


> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Louis de Stoutz 
> <loudest@a...> wrote:
> 
>>Greetings,
>>
>>it seems that quite a few use varnishes. Sorry if this has been 
>>asked/said before: what is the archival aspect of those varnishes? Do 
> 
> we 
> 
>>have any information about the different makes? I wouldn't like to 
>>reduce the life-span of my prints because of the wrong varnish!
>>
>>Thanks,
>>Louis