# Crown Trade Covermatt Obliterating Emulsion

Emulsion paint · Crown Trade

Crown Trade Covermatt Obliterating Emulsion covers up to 18 m² a litre and takes 2 coats, by Crown Trade's own figures.
Source: Crown Trade, Crown Trade Covermatt Obliterating Emulsion data sheet (dated November 2025), read 11 October 2026.

What it is for, in the maker's words: “Substrates Walls & Ceilings” (Crown Trade Covermatt Obliterating Emulsion product page, read 11 October 2026).

The walls of a 3 × 4 m room, 2.4 m high, need 3.761 L: 1 × 5 L to buy. At 10 m² a litre, BuildBatch's generic example for a wall that is not the maker's best case, the same room needs 6.77 L: 1 × 10 L.

## Coverage

Crown Trade states up to 18 m² a litre. The maker's words: “A guide to the coverage which can be achieved under normal conditions is up to 18m² per litre”.
- Bare, rough or absorbent surfaces: A maker's coverage is their best case, on a smooth sealed surface: bare, rough or absorbent walls take more.
- A strong change of colour: Crown Trade says: “Certain colours may require additional coats to give complete obliteration”. Each extra coat is the paint of one coat again.
- Waste and touch-ups: The room table adds 10% for what stays in the tray and on the roller and for touching up: BuildBatch's generic example, not the maker's. The tin-by-tin figures add nothing.
- The ceiling and the woodwork: Neither is in these figures. Each is a separate paint and a separate line on a list.

## Coats

Crown Trade gives 2 coats for Crown Trade Covermatt Obliterating Emulsion, in these words: “Certain colours may require additional coats to give complete obliteration”.

## Tin sizes

| Tin | One coat | 2 coats |
|---|---|---|
| 5 L | up to 90 m² | up to 45 m² |
| 10 L | up to 180 m² | up to 90 m² |

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

## How many tins for a room

| Room | In feet | Walls to paint | Paint needed | Tins to buy | At 10 m² a litre |
|---|---|---|---|---|---|
| 2.5 × 3 m | 8.2 × 9.8 ft | 23.57 m² | 2.881 L | 1 × 5 L | 1 × 10 L |
| 3 × 3 m | 9.8 × 9.8 ft | 25.97 m² | 3.174 L | 1 × 5 L | 1 × 10 L |
| 3 × 4 m | 9.8 × 13.1 ft | 30.77 m² | 3.761 L | 1 × 5 L | 1 × 10 L |
| 4 × 4 m | 13.1 × 13.1 ft | 35.57 m² | 4.348 L | 1 × 5 L | 1 × 10 L |
| 4 × 5 m | 13.1 × 16.4 ft | 40.37 m² | 4.934 L | 1 × 5 L | 1 × 10 L |

Each room is 2.4 m high with one internal door and one window of 1.2 × 1.1 m taken off; 2 coats; 10% extra for waste, BuildBatch's generic example. Worked out by the planner when the site was built.

Start a list for a 3 × 4 m room with this paint's figures: https://buildbatch.co.uk/start/#v=1&job=paint&walls=paint&ceiling=none&trim=none&units=m&length=4&width=3&height=2.4&door=0.762x1.981&window=1.2x1.1&surface=sound&subfloor=unsure&ground=unsure&fitting=unsure&wallpaint=custom&wallpaint.coats=2&wallpaint.coverage=18&wallpaint.extra=10&wallpaint.tins=5,10&wallpaint.examples=extra&end=21

## 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/crown-trade-covermatt-obliterating-emulsion/#where-to-buy. BuildBatch sells nothing and compares no prices.

## Questions

**How much does a litre of Crown Trade Covermatt Obliterating Emulsion cover?** Crown Trade states up to 18 m² a litre for Crown Trade Covermatt Obliterating Emulsion (Crown Trade Covermatt Obliterating Emulsion data sheet (dated November 2025), 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 Crown Trade Covermatt Obliterating Emulsion cover?** At the maker's figure a 5 L tin covers up to 90 m² in one coat, or up to 45 m² in 2 coats. That is the litres times the coverage per litre, with nothing added for waste.

**How many coats does Crown Trade Covermatt Obliterating Emulsion need?** Crown Trade gives 2 coats for Crown Trade Covermatt Obliterating Emulsion, in these words: “Certain colours may require additional coats to give complete obliteration”.

**How many tins of Crown Trade Covermatt Obliterating Emulsion for a 3 × 4 m room?** The walls of a 3 × 4 m room, 2.4 m high, need 3.761 L: 1 × 5 L to buy. At 10 m² a litre, BuildBatch's generic example for a wall that is not the maker's best case, the same room needs 6.77 L: 1 × 10 L. The room is 2.4 m high with one door and one window taken off, 2 coats, with 10% extra for waste.

**What is Crown Trade Covermatt Obliterating Emulsion for?** Crown Trade says: “Substrates Walls & Ceilings” (Crown Trade Covermatt Obliterating Emulsion product page, read 11 October 2026).

**What tin sizes does Crown Trade Covermatt Obliterating Emulsion come in?** The catalogue lists 5 L and 10 L. A shop may not stock every size.

## Where the figures come from

- Crown Trade, Crown Trade Covermatt Obliterating Emulsion data sheet (dated November 2025) (https://professional.crownpaints.com//content/uploads/2025/02/Crown-Trade-Covermatt-Obliterating-Emulsion.pdf): coverage and coats, read 11 October 2026.
- Crown Trade, Crown Trade Covermatt Obliterating Emulsion product page (https://professional.crownpaints.com/product/crown-trade-covermatt-obliterating-emulsion/): 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/crown-trade-covermatt-obliterating-emulsion/