Paper weight: LBS to gr/m2 translation
1) In US, the weight of paper is calculated in LBS, in Europe in gr/m2 . Could Blurb provide me the equivalent of 80 and 100 LBS in gr/m2 (and display them on the web site). My customers are asking for that.
2) Why is 100 LBS 35% heavier than 80 LBS paper (for me 25%), or is the paper quality from matte into silk adding the 10%?
Thanks a lot for the responce