Can limewash go over emulsion?

Not directly. You'd need to either strip the emulsion or apply a specialist breathable primer that's compatible with both. We usually recommend the limewash-effect paint route in that scenario.

Three to four thin coats. The first looks patchy and alarming — don't worry about it, the later coats even out and build the depth.

Is limewash white only?

No — limewash takes mineral pigments, so you can specify earth tones, sage, blues, ochres, even deep terracottas. Bright primary colours don't work; lime tempers everything.

Limewash Walls: What They Are, How They Age, Where They Work

Limewash has had a strong design-press moment over the last few years, but most of what's written about it treats it as a paint that happens to look chalky. It isn't. It's a different category of finish, with different rules, and ignoring those rules is why it sometimes fails.

This piece is what we tell clients when they ask whether limewash is right for their project.

What it actually is

Limewash is slaked lime suspended in water, with mineral pigments for colour. It bonds to the wall by carbonation — absorbing CO2 from the air and turning back into calcium carbonate (limestone). The finished surface is mineral, breathable, and naturally antibacterial.

Why people specify it

The cloudy, soft tonal variation across the wall — no flat plane of single-tone colour.
Breathability — it lets old plaster and brick walls dry out naturally rather than trapping moisture.
Patina — it ages well, where modern emulsion just gets dirty.
Texture — it reads as material, not as paint.

Where it works

Limewash works best on porous substrates: lime plaster, brick, stone, and properly prepared traditional plaster. It works less well on modern gypsum plaster (which can chalk) and not at all on previously emulsion-painted walls without aggressive prep.

If you fall in love with limewash and your walls are emulsion-painted modern plaster, we can apply a limewash-effect paint instead — visually close, technically a normal paint, no breathability advantage.

How it ages

Over the first 2–4 weeks the colour develops as carbonation completes — expect it to lighten slightly and become more matt. Over years, it builds patina from handling, sun and time. It doesn't peel; it slowly wears, and a touch-up coat reads as part of the same wall, not as a patch.

The practical limits

Don't use it in wet-rooms or showers — it isn't designed for it.
It rubs off slightly when first cured — not ideal for nursery walls with sticky hands.
It dusts a little before it's fully carbonated — protect floors and furniture for the first few weeks.
Modern emulsion underneath means it won't bond reliably without sanding back.

Care and touch-up

Don't wash limewash with detergents — it'll dull. Spot-touch with the same wash mix, feathered out. A small batch from the original mix should be kept for this.

Limewash walls — what they are, how they age, where they work