Digital BW, The Print

GSM is a measure of density - grams per square meter.
Paper of the same thickness can have different density depending on the
fiber composition and sheet formation. An alpha cellulose (wood based) sheet
will usually have a higher GSM per mil (1/1000 inch) caliper than a cotton
based paper.
For example: our Grayhawk (high alpha cellulose) paper is 12 mil caliper and
235 GSM. Our Merlin (100% cotton) paper is 15 mil and 255 GSM and our Condor
(100% cotton) paper is 20 mil and 325 GSM while our Kestrel (100% cotton
heavily textured) paper is 25 mil and 325 GSM. Kestrel is manufactured on an
entirely different paper machine with a different fiber length and
composition than Merlin and Condor.
Clear as mud -right <G>!

Diana York  mailto:diana@...
Hawk Mtn Papers www.hawkmtnartpapers.com
888-807-2248

-----Original Message-----
From: DigitalBlackandWhiteThePrint@yahoogroups.com
[mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of
deandadin
Sent: Wednesday, March 15, 2006 12:10 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] Regarding paper thickness


I am looking to find out what the GSM thickness rating is. How does
the GSM rating compare to mm thickness. For example, how many mm is a
paper with a GSM of 255? How many GSM is a paper that is 1.3 mm? I am
also interested in finding out the maximum thickness of paper an Epson
2200 will handle. Thanks a lot and I appreciate any response. Steve