Digital BW, The Print

Mark,
I am highly suspicious of products like this and am of the school that if
any doubt at all exists, not adding something is safer than adding it.
At kwalsh74¹s suggestion I went to Wilhelm¹s site and all I could find was
paper/ink tests where PremierArt spray was used on prints being tested for
ink longevity. If there were any tests of the spray in and of itself, I
couldn¹t find them.
It appears this particular spray does add projected years to the life of the
prints on which it is tested. However, isn¹t what is really being tested
under these circumstances just the longevity of the inks? Is anything known
about the long term effect of this spray on papers?


On 12/29/10 5:58 PM, "Mark" <mark@...> wrote:
> 
> Acrylic polymers like Premier Print Shield have a pretty good track record and
> are widely used to protect paintings these days (especially paintings done
> with acrylic paints).  Research at both Wilhelm Imaging Research and
> Aardenburg does suggest for the most part that acrylic coatings cut down on
> photo-oxidation of pigments so improve lightfastness, gas fastness, etc.
> However, the costs, the need for good ventilation during application, and
> application challenges of spray or roller coating without defects means there
> is no free lunch in the quest for durable, abrasion resistant coatings.
> 
> cheers,
> Mark
http://www.aardenburg-imaging.com


David Kachel

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