# Dulux Trade Undercoat

Primer, undercoat and sealer · Dulux Trade

Dulux Trade Undercoat covers up to 17 m² a litre and takes 1 coat, by Dulux Trade's own figures.
Source: Dulux Trade, Dulux Trade Undercoat data sheet 404 (issued 08/25), read 11 October 2026.

What it is for, in the maker's words: “Suitable for use on interior wood and metal surfaces” (Dulux Trade Undercoat data sheet 404 (issued 08/25), read 11 October 2026).

## Coverage

Dulux Trade states up to 17 m² a litre. The maker's words: “A guide to the practical coverage which can be achieved under normal conditions is up to 17m² per 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 Trade gives 1 coat for Dulux Trade Undercoat, in these words: “Apply 1 coat of the appropriate coloured Dulux Trade Undercoat”.

## Tin sizes

| Tin | One coat |
|---|---|
| 1 L | up to 17 m² |
| 2.5 L | up to 42.5 m² |
| 5 L | up to 85 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-trade-undercoat/#where-to-buy. BuildBatch sells nothing and compares no prices.

## Questions

**How much does a litre of Dulux Trade Undercoat cover?** Dulux Trade states up to 17 m² a litre for Dulux Trade Undercoat (Dulux Trade Undercoat data sheet 404 (issued 08/25), read 11 October 2026). A maker's coverage is their best case, on a smooth sealed surface.

**How much does a 5 litre tin of Dulux Trade Undercoat cover?** At the maker's figure a 5 L tin covers up to 85 m² in one coat. That is the litres times the coverage per litre, with nothing added for waste.

**How many coats does Dulux Trade Undercoat need?** Dulux Trade gives 1 coat for Dulux Trade Undercoat, in these words: “Apply 1 coat of the appropriate coloured Dulux Trade Undercoat”.

**What is Dulux Trade Undercoat for?** Dulux Trade says: “Suitable for use on interior wood and metal surfaces” (Dulux Trade Undercoat data sheet 404 (issued 08/25), read 11 October 2026).

**What tin sizes does Dulux Trade Undercoat come in?** The catalogue lists 1 L, 2.5 L and 5 L. A shop may not stock every size.

## Where the figures come from

- Dulux Trade, Dulux Trade Undercoat data sheet 404 (issued 08/25) (https://msp.images.akzonobel.com/prd/dh/eukddc/documents/c8/6b/10/19/dt_404_undercoat.pdf): coverage, coats and what it is for, 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-trade-undercoat/