Digital BW, The Print

>> ... Premiere-art Printsheild...

>Wilhelm's test reports indicate that this spray significantly increases 
>the lifetime of Epson UC prints made on some of the matte papers he's 
>tested.

My tests show the same thing with UC pigments.  However, while the UC pigs
get about 30% better fade resistance in my tests, the MIS pigs only get
about 10% better.  I've been a bit suspicious that the MIS base already has
a UV barrier in it, which might account for the superior test results I see
with them.  When the UC pigs are sprayed with PremierArt, their fade
resistance in my tests jumps up to about the MIS level, with their delta e
actually being a bit better.  The problem is that the PremierArt spray
significantly decreases the dmax, unlike the Lascaux Fixative.  But the
Lascaux does not have UV absorbers in it and does not increase the fade
resistance.

Paul
www.PaulRoark.com