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Painting new plaster: mist coats and how much paint

Painting new plaster: mist coats and how much paint

By the Plankley team · Last checked 19 October 2026

Work it out: the paint calculator shows the sum for your own measurements, with every figure editable.

Worked example: Buy: 1 × 5 L + 1 × 1 L.

Open the paint calculator

Check with the source. Rules differ between England, Wales, Scotland and Northern Ireland and can change. Follow the official guidance linked on this page, not our summary.

On this page

Why it's thirsty
Drying (follow the maker)
Mist coats
Effect on quantity

Why it's thirsty

Drying (follow the maker)

Mist coats

Effect on quantity

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How many plasterboard sheets do i need

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