Fibre
100% cotton
Weight
140 lb / 300 gsm
Surface
Cold press
Sizing
Gelatin, internal and external
Format
Block, glued 4 sides
Made
Mould-made, France
Pros
- The most forgiving sheet made — lifts back to near-white
- Survives scrubbing, masking fluid, and repeated reworking
- Block format glued on 4 sides eliminates buckling entirely
- Consistent sheet-to-sheet; almost no batch variation
- The reference standard — instruction assumes this behavior
Cons
- Roughly 3× Strathmore's cost per sheet
- Slightly warm white mutes very high-key painting
- Heavy sizing takes adjustment coming from student paper
Arches is the paper the rest of the field is described in relation to. Mould-made from 100% cotton and gelatin-sized both internally and on the surface, it behaves in a way that makes watercolor feel like a controllable medium rather than a gamble.
The block format matters more than it sounds. Glued on all four edges, the sheet cannot cockle no matter how much water you flood on, and you cut it free only when it's dry and flat. For anyone who has fought a buckling pad, this alone justifies the format.
Our Pick
The reference sheet the entire medium is measured against. 100% cotton, mould-made, and gelatin-sized throughout — which is why Arches forgives mistakes no other paper forgives. If you can afford it, this is the correct default.
Buy Arches if you work wet-into-wet, lift and rework passages, or use masking fluid. The heavy internal sizing is what makes all three of those survivable. It's also the right choice for finished work you intend to sell or frame.
What we don't like
It is expensive — roughly triple Strathmore per sheet. The surface is slightly warmer and less brilliant white than Fabriano, which mutes very high-key work. And the heavy sizing means pigment sits up longer before sinking, which takes adjustment if you learned on cheap paper.



