Dry brush on rough stock: letting the paper do the drawing
Dry brush is the one watercolour technique where a rougher, cheaper paper is an advantage. The texture you see is not paint you applied — it is paint that missed the pits of the paper. Understanding that inversion is the difference between deliberate texture and an accident that looks like a scratch.
Ochre — Warm opaque earth, the mixing neutraliser.
| Pigment | Parts | Hex |
|---|---|---|
| Yellow Ochre | 3 : 6 (50%) | #C99442 |
| Burnt Sienna | 2 : 6 (33%) | #9A5A32 |
| Payne's Grey | 1 : 6 (17%) | #3E4A57 |
- Rough 300 gsm only. Cold press is too smooth to break a stroke; the tooth of rough paper is what does the work.
- Load a worn, flat hog brush with thick paint straight from the well — no water added. The consistency should be like double cream.
- Drag the brush sideways across the paper with the handle almost parallel to the surface, so only the bristle tips touch.
- Let the stroke break into separate marks. If it stays solid, the brush is too wet or too new — flatten the bristles on scrap first.
- Build three overlapping passes in different directions. The grain changes with each pass and that is the whole point.
- Use Payne's grey only in the final pass, at a fifth of the strength of the ochre, to seat the texture into shadow.
- Never go back with water. Dry brush is a one-way technique; wetting the surface turns it into an ordinary scumble.
The correct brush is a worn one
A new hog flat has springy, evenly cut bristles that deliver an even line. You want the opposite: a brush with splayed, uneven tips that has been used for a year and never reshaped. Flattening a new brush on scrap paper with a palette knife gets you part of the way there, but only use does it properly.
Sable and synthetic rounds are a poor substitute. They hold water in the belly, and any water at all makes the stroke continuous rather than broken.
Three directions, three grains
The tooth of rough 300 gsm is not uniform. It has a directional bias from the manufacturing screen, so a stroke pulled left to right reads differently from one pulled top to bottom. Three passes at roughly 60 degrees to each other give a woven texture that reads as a material rather than as a set of lines.
Keep the paint at double-cream consistency across all three passes. Thinning it between passes produces a value gradient that looks like an error rather than a build.
Ochre is doing the colour work
Yellow ochre has a low tinting strength and a naturally granular, opaque body, which is exactly what dry brush needs: it sits on the peaks of the paper rather than sinking in. Three parts ochre to two parts burnt sienna keeps the mix warm without going orange.
Payne's grey is a convenience mixture of ultramarine, black and a little ochre. At one fifth strength it darkens without desaturating the warmth, which is the mistake people make when they reach for a neutral tint instead.
What matters
- Rough 300 gsm only — cold press is too smooth to break the stroke.
- Use a worn, splayed hog flat; a new or sable brush delivers a solid line.
- Three passes at about 60 degrees apart produce a woven grain, not parallel lines.
- Yellow ochre 3 : burnt sienna 2, at double-cream thickness, with Payne's grey only in the last pass.
Handling note — Technique notes only. Dry-brush work releases pigment dust when the surface is abraded — work with ventilation and follow the manufacturer's safety data sheet.