Slap chop (or slapchop) is the speed-painting method that took over tabletop painting for one reason: it turns a model's shading into a five-minute mechanical job, then lets translucent one-coat paints do the color work. A full unit can go from sprue-grey to table-ready in an evening, and the result looks far better than the effort suggests.
The idea in one sentence
Paint the light, not the color: build a black-to-white value map with drybrushing, then glaze translucent color over it so the values show through.
The four steps
- Prime black. Any black primer works — the primer guide covers aerosol versus brush-on.
- Drybrush grey, generously. A medium grey drybrushed over everything except the deepest recesses. This is a heavier drybrush than a highlight pass — you are covering most of the model. Technique details are in how to drybrush miniatures.
- Drybrush white, lightly. White only on the upper surfaces and sharpest edges, where overhead light would land. You now have a monochrome model with all its shading done — this is the same value map zenithal priming produces with sprays.
- Glaze with one-coat paints. Citadel Contrast, Army Painter Speedpaint, or Vallejo Xpress Color straight over the drybrush. The paint settles dark in recesses and thin over the white highlights, tinting the value map into finished color.
Picking the right one-coat paints
The whole method rides on how translucent each color is. Reds, greens, and blues in every one-coat range glaze beautifully; heavily pigmented yellows and some fleshtones cover more than they tint and can bury your drybrush work — thin those with medium. The three one-coat ranges are close but not interchangeable: use the Contrast paint chart to see every Citadel Contrast color, and its conversion links to find the matching Speedpaint or Xpress Color when the exact shade you want lives in another brand.
Making it look less like slapchop
The tell is a uniform, slightly chalky finish. Three cheap upgrades: pick out two or three focal details (faces, weapon edges, gems) with ordinary opaque paint afterward; hit metallics with real metallic paint over the glaze; and vary the glaze — two thin coats of Contrast in the deepest areas adds depth the single-pass version lacks. That "two thin coats" habit applies to one-coat paints as much as regular acrylics.
When not to slapchop
Large smooth panels (vehicles, power armor plates) show drybrush scratches through the glaze, and bright clean color schemes (white armor, lemon yellow) fight the grey underneath. For those, zenithal priming plus airbrushed or layered color is the better fast route.
Slapchop is a value-first workflow — once it clicks, you will start seeing every fast technique, from washes to zenithal, as versions of the same trick.