U of S | Mailing List Archive | alt-photo-process-l | Re: Albumen paper and ply

Re: Albumen paper and ply

I have never noticed any weight designation, and I can tell you from experience that Strathmore 2 ply separates when wet!  

On Thu, Jan 15, 2009 at 9:51 AM, Jeremy Moore <jeremydmoore@gmail.com> wrote:
No, because ply is the number of layers of paper and gsm is the weight of the paper. Each ply can be whatever weight you want, for instance, think of toilet paper: 1-ply is just one layer of toilet paper and 2-ply is two layers together. You may be thinking of the conversion between gsm and lb/sq.in.: 1 lb/sq.in. is about 704 kg/sq.meter and therefore 80 pound is roughly equivalent to 216.5 gsm.