Digital BW, The Print

Dave,

I use the aerosol sprays to seal and reduce reflective artifacts on glossy
papers.  On matte papers I use the sprays when I want to give some physical
protection to the prints, but with no visible changes.  The sprays will not
raise the dmax on matte paper.

The Hydrocote is the best way I found to raise the dmax on matte papers and
seal them against water.

Paul
www.PaulRoark.com 

For UT2 information, curves, and settings see:
http://home1.gte.net/res09aij/

_____________________________

-----Original Message-----
From: dave_in_gva2001 [mailto:meddings@...] 
Sent: Sunday, February 29, 2004 6:25 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] Lyson Print Guard....did I miss something?

I have Hydrocote and a Meyer rod and have seen the effect this has on 
my UT-1 prints on PhotoRag. An obvious difference is the increase in 
contrast and (even though I can't measure it via densitometer) the 
increase in Dmax.

More recently I read with interest the threads on spray coatings and 
ended up buying a can of Lyson Print Guard, which is supposed to be 
identical to Clearshield. I expected this to have a similar effect in 
terms of increasing contrast and Dmax, but was surprised to see that 
3 coats sprayed onto a print seems to yield no visible difference at 
all with an unsprayed print.

Did I miss something? Is the rationale for using the spray coatings 
UV protection and print longevity only, or is it also for increasing 
Dmax?

Best,

Dave



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