Digital BW, The Print

Livick claims great things from Clearstar
(http://www.clearstarcorp.com/coatings.asp), and he and some others also
like Sennelier's 
(see http://www.jerrysartarama.com/art-supply/catalogs/0047696000000)

Have you ever tried any of these products?

Livick often does thick coats of water-based, which I got a bit fed up with
when doing my Hydrocote and Mayer (wire-rod) experiments.

I see ClearStar also has solvent-based aerosol cans of a solvent-based mix
that might be closer to what I'd like.

I've thought the fade results Livick gets with his coated samples may be
materially affected by UV absorbing character of some of the coatings and
his apparent outside sun light source for testing.  I think this light
source overstates the usefulness of UV absorbers for those of us doing
indoor display.  (Unfiltered sunlight has high intensity, short wavelength
UV, the worst of which glass windows largely absorb).  I also wonder if all
his test results are truly comparable, for example, being done at the same
time.  If not, how is the light source (not to mention other variables)
consistency controlled?  But, these sprays are something that may warrant
further exploration.

I worry, among other things, that my accelerated fade testing may not pick
up long term yellowing, which has been a serious problem with coatings
historically used.  As such, acrylics and materials going through some
accelerated ageing that goes further than I go are rather persuasive to me.

Paul
www.PaulRoark.com 

________________________

-----Original Message-----
From: Tyler Boley [mailto:tyler@...] 
Sent: Tuesday, July 20, 2004 10:05 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] Thank You Paul For Being Here

Out of frustration with a print that was mostly black, and difficult
to avoid flaking or streaking from pre-brushing, I tried Golden
"Archival Varnish". I don't what what lightfastness qualities it may
have, but I was a bit disappointed with the plasticy sheen it put on
the print, and the appearance of lower dmax particularly with multiple
coats.
Another slightly disappointing possibility.
Tyler

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
<paul.roark@v...> wrote:
> Ross,
> 
> >People in the Digital BW Forum mentioned that you recommend Lascaux 
> >Fixative spray for greater archivability of UT2 inks matte papers.
> 
> I'm not so sure any more.  I always reserve the right to change my mind.
> 
> After the last test, I'd have to say that Lascaux (B72) is good for some
> physical protection, but it did not help at all with respect to
> lightfastness.  In the past it had no effect on this issue.  This
time it
> looked like it might actually lower the lightfastness slightly. 
(This could
> be a random error it was so small.  However, it was enough to raise
a yellow
> caution flag in my mind.)
> 
> I do think that matte prints need some physical protection.  Putting
them
> under glass is great, but who wants to do this with most shots?  So,
among
> the other ways to protect the image somewhat, B72 seemed like a
relatively
> good way to go.  It *was* neutral in lightfastness, has a great
reputation
> in the conservation field, has about the least effect on dmax (matte
dmax
> often decreases with light sprays), and is easy to use.
> 
> Bottom line, it is probably a good idea if the print is otherwise
> unprotected.  However, we really need a better spray for matte
prints.  I
> have not tested many papers, but PremierArt (which increased
lightfastness
> in the last test and is great on glossy paper) lowers the dmax
unacceptably
> on some matte paper.  So, be sure to test a small test strip before
using it
> or any other spray.
> 
> Paul
> www.PaulRoark.com




Please visit the Group Homepage to check the Files, and other resources as
they are often being updated.

http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint

If you wish to receive no emails or just a daily digest, or you wish to
unsubscribe, please edit your Membership preferences by visiting this same
page.

Please follow these basic guidelines:
- As threads develop, trim off excess portions of earlier messages to keep
them short.
- Good manners are required at all time. No personal attacks or flames.
Hostile, aggressive or argumentative users may be removed from the
membership without notice.
- Keep your posts and threads related to the group topic of digital B&W
printing. Users who persistently make off-topic posts may be removed from
the membership.
- By posting on this forum you agree to abide by the group rules and
guidelines, and to abide by the actions and decisions of the group Owner and
Moderators. See "Group Topic, Rules and Guidelines" in the Files section:
http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/

BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT
YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE "OWNER" AND
"MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY
DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS,
GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE  "OWNER" AND
"MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY
TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR
ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY
THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER
MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.
 
Yahoo! Groups Links