A printer sent me the following and I don't quite understand some of the terms.
Box Lid (1 pc): 128gsm C2S art paper +1/s gloss lamination over 1mm board with 100gsm woodfree paper backing
1. What is gsm?
2. What is C2S art paper?
3. Does this look like a standard thickness?
Game board: 2 mm board
4. Is this standard size?
1 set Playing card (27 sheets): 260gsm C2S art card with b/s gloss lamination
5. Is 260 gsm a standard thickness for cards?
Thanks for your advice
It's interesting that your printer is laminating the images (layering on a sheet of plastic with an adhesive backing) and not varnishing (applying a liquid protective coating). Varnish is pretty standard in this kind of work, not sure what the difference would be in the final product (as far as durability, warping, etc).
For the thicknesses, a simple conversion of metric to english yields the following:
1mm = =.039" or 39pt board
2mm = .079" or 79pt board
1mm roughly equals one ply of chipboard, so 1mm is single ply chipboard (standard for a box) and 2mm is 2-ply chipboard (standard for a board).
I don't know what art card, but double check with them to be sure it's playing card stock (opaque center) if that's what you want.
260gsm seems OK (a little thin, but still a standard).
Best of luck!