Hahnemuhle 300 Matt Watercolour Board Is this board - or is it 300 gsm paper?
The Hahnemuhle 300 is a 300gsm (140lb) watercolour paper. It is natural white, acid free and lightfast and extremely resistant to aging.
This product is in a block form – glued on all four sides offering a stable surface and improves the flatness of the paper when wet. The board in this occasion refers to the format as a block.