Wet-in-wet: stretching the open time to six minutes
Wet-in-wet is not simply painting on damp paper. It is a timed procedure, and the variable that decides whether it works is how long the sheet has been wet before you start. Soaked, blotted 300 gsm gives you four to six minutes; a spray-damped sheet gives you ninety seconds.
Rose — Transparent cool red with a violet lean.
| Pigment | Parts | Hex |
|---|---|---|
| Quinacridone Rose | 3 : 5 (60%) | #C2537A |
| Permanent Alizarin Crimson | 1 : 5 (20%) | #9B2E44 |
| Cobalt Blue | 1 : 5 (20%) | #3B6FA8 |
- Soak 300 gsm cold press for two minutes in a tray, then blot and staple to a board. Soaked paper gives you four to six minutes of open time instead of ninety seconds.
- While the sheet is still glossy, drop quinacridone rose into the upper third with three touches of a large round brush.
- Touch alizarin crimson into the lower half of the wet rose patch. It will bloom outward on its own; do not stir.
- Count to eight. If the edge of the bloom has not yet travelled, the paper is drier than you think — add a clean-water touch alongside.
- After four minutes, drop one brush-tip of cobalt blue at the coolest corner. It will feather into the rose as a violet gradient with no visible border.
- Stop at six minutes. Past that the surface is too dry to take new paint softly and you will get a hard rim.
- Dry flat. Soft edges hold their shape best if the board never moves while the sheet is damp.
Soak, blot, staple
A tray soak for two minutes saturates the paper all the way through, and that internal water reserve is what keeps the surface open. Blot once with a clean towel so the surface is matte rather than glossy — glossy means the pigment will float and spread as a ring.
Stapling rather than taping matters here because a soaked 300 gsm sheet will expand by roughly 2% and a tape line will pop off at the corners within three minutes.
A colour pair that will not grey out
Quinacridone rose and cobalt blue are almost complementary in hue but sit at very different values, so when they feather into each other they produce a violet gradient with a luminous middle rather than a dead grey band. Three parts rose to one part cobalt is the ratio that keeps the middle transparent.
Alizarin crimson is the odd one out: it is a deep, slightly staining red that behaves as a value anchor. It goes in first, under the rose, so the bloom carries the darker tone outward rather than dropping a brown spot in the centre.
Reading the eight-count
When you drop paint into a wet surface, the bloom needs about eight seconds to travel visibly. If nothing has moved by eight, the surface has already skinned over and the paint will sit on top as a distinct shape with a hard rim.
The fix is a clean-water touch beside the new paint, not more pigment. Water reopens the surface; pigment just piles up.
What matters
- A two-minute tray soak plus a blot gives four to six minutes of usable open time.
- Three parts quinacridone rose to one part cobalt blue feathered wet yields a luminous violet.
- If a bloom has not moved in eight seconds, the surface has skinned — add water, not paint.
- Stop at six minutes; beyond that every new touch leaves a hard rim.
Handling note — Technique notes only. Follow the manufacturer's safety data sheet for pigment handling and studio ventilation.