Digital BW, The Print

Ernst:
It doesn't take much of a protective coat on the microporous ink jet media to protect against oxidation. Any sealant is better than leaving it open to the air and pollutants in the short term. In the long term you do want a sealant that does not discolor (patina) in the long run, like many older lacquers and varnishes.

The aquas PVAs have a good reputation in this regard from the 1950's.

John Nollendorfs   

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Ernst Dinkla <e.dinkla@...> wrote:

> With the HP Z gloss enhancer there are other issues like the bronzing 
> that is still visible on more gloss papers. The Premier and HM 
> protective coats do their job but I like to work with bulk water based 
> dispersions. The Premiere Art Eco could be used for papers too I 
> understand but I suspect the coating is not that gas tight.
> 
> 
> -- 
> Met vriendelijke groeten,   Ernst
> 
> Shareware now:
> Dinkla Gallery Canvas Wrap Actions for Photoshop
> 
> http://www.pigment-print.com/dinklacanvaswraps/index.htm
> 
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