# Dulux Primer & Undercoat for Multi Surfaces

Primer, undercoat and sealer · Dulux

Dulux Primer & Undercoat for Multi Surfaces covers up to 16 m² a litre, by Dulux's own figures.
Source: Dulux, Dulux Primer & Undercoat for Multi Surfaces product page, read 11 October 2026.

Dulux gives no single number of coats for it: “Apply 1 coat with a brush to previously coated surfaces or 2 coats to bare surfaces”.

What it is for, in the maker's words: “Dulux Primer & Undercoat for Multi Surfaces is suitable for interior or exterior wood, metal and masonry surfaces” (Dulux Primer & Undercoat for Multi Surfaces product page, read 11 October 2026).

## Coverage

Dulux states up to 16 m² a litre. The maker's words: “Up to 16m2/litre”.
- Bare, rough or absorbent surfaces: A maker's coverage is their best case, on a smooth sealed surface: bare, rough or absorbent surfaces take more.
- Waste and touch-ups: The tin-by-tin figures add nothing for what stays in the tray and on the brush, or for touching up.

## Coats

Dulux gives no single number of coats for Dulux Primer & Undercoat for Multi Surfaces. Its words: “Apply 1 coat with a brush to previously coated surfaces or 2 coats to bare surfaces”. Follow the tin's own instructions.

## Tin sizes

| Tin | One coat | Two coats |
|---|---|---|
| 750 ml | up to 12 m² | up to 6 m² |
| 2.5 L | up to 40 m² | up to 20 m² |

Arithmetic on the maker's figure: the litres in the tin times the coverage per litre, with nothing added for waste.

## Where to buy it

The page has the shops' own searches for it, and any link there that is paid for is marked Ad: https://buildbatch.co.uk/products/dulux-primer-and-undercoat-for-multi-surfaces/#where-to-buy. BuildBatch sells nothing and compares no prices.

## Questions

**How much does a litre of Dulux Primer & Undercoat for Multi Surfaces cover?** Dulux states up to 16 m² a litre for Dulux Primer & Undercoat for Multi Surfaces (Dulux Primer & Undercoat for Multi Surfaces product page, read 11 October 2026). A maker's coverage is their best case, on a smooth sealed surface.

**How much does a 2.5 litre tin of Dulux Primer & Undercoat for Multi Surfaces cover?** At the maker's figure a 2.5 L tin covers up to 40 m² in one coat, or up to 20 m² in two coats. That is the litres times the coverage per litre, with nothing added for waste.

**How many coats does Dulux Primer & Undercoat for Multi Surfaces need?** Dulux gives no single number of coats for Dulux Primer & Undercoat for Multi Surfaces. Its words: “Apply 1 coat with a brush to previously coated surfaces or 2 coats to bare surfaces”. Follow the tin's own instructions.

**What is Dulux Primer & Undercoat for Multi Surfaces for?** Dulux says: “Dulux Primer & Undercoat for Multi Surfaces is suitable for interior or exterior wood, metal and masonry surfaces” (Dulux Primer & Undercoat for Multi Surfaces product page, read 11 October 2026).

**What tin sizes does Dulux Primer & Undercoat for Multi Surfaces come in?** The catalogue lists 750 ml and 2.5 L. A shop may not stock every size.

## Where the figures come from

- Dulux, Dulux Primer & Undercoat for Multi Surfaces product page (https://www.dulux.co.uk/en/products/dulux-primer-and-undercoat-for-multi-surfaces): coverage, what it is for and its words on coats, read 11 October 2026.

Written with AI tools; not yet checked by a tradesperson. Follow the tin's own instructions.

The page: https://buildbatch.co.uk/products/dulux-primer-and-undercoat-for-multi-surfaces/