# Crown Trade Px4 All Purpose Primer

Primer, undercoat and sealer · Crown Trade

Crown Trade Px4 All Purpose Primer covers up to 16 m² a litre, by Crown Trade's own figures.
Source: Crown Trade, Crown Trade Px4 All Purpose Primer data sheet (dated November 2021), read 12 October 2026.

Crown Trade gives no single number of coats for it: “Apply one coat, two coats over stains – see limitations”.

What it is for, in the maker's words: “Suitable Surfaces Previously painted surfaces, glass, ceramics, melamine, most wood and nonferrous metals” (Crown Trade Px4 All Purpose Primer data sheet (dated November 2021), read 12 October 2026).

## Coverage

Crown Trade states up to 16 m² a litre. The maker's words: “Up to 16m² per litre on smooth surfaces”.
- 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. Crown Trade's own words: “Up to 16m² per litre on smooth surfaces”.
- 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

Crown Trade gives no single number of coats for Crown Trade Px4 All Purpose Primer. Its words: “Apply one coat, two coats over stains – see limitations”. Follow the tin's own instructions.

## Tin sizes

| Tin | One coat | Two coats |
|---|---|---|
| 1 L | up to 16 m² | up to 8 m² |
| 5 L | up to 80 m² | up to 40 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/crown-trade-px4-all-purpose-primer/#where-to-buy. BuildBatch sells nothing and compares no prices.

## Questions

**How much does a litre of Crown Trade Px4 All Purpose Primer cover?** Crown Trade states up to 16 m² a litre for Crown Trade Px4 All Purpose Primer (Crown Trade Px4 All Purpose Primer data sheet (dated November 2021), read 12 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 Px4 All Purpose Primer cover?** At the maker's figure a 5 L tin covers up to 80 m² in one coat, or up to 40 m² in two coats. That is the litres times the coverage per litre, with nothing added for waste.

**How many coats does Crown Trade Px4 All Purpose Primer need?** Crown Trade gives no single number of coats for Crown Trade Px4 All Purpose Primer. Its words: “Apply one coat, two coats over stains – see limitations”. Follow the tin's own instructions.

**What is Crown Trade Px4 All Purpose Primer for?** Crown Trade says: “Suitable Surfaces Previously painted surfaces, glass, ceramics, melamine, most wood and nonferrous metals” (Crown Trade Px4 All Purpose Primer data sheet (dated November 2021), read 12 October 2026).

**What tin sizes does Crown Trade Px4 All Purpose Primer come in?** The catalogue lists 1 L and 5 L. A shop may not stock every size.

## Where the figures come from

- Crown Trade, Crown Trade Px4 All Purpose Primer data sheet (dated November 2021) (https://professional.crownpaints.com//content/uploads/product-sync-resources/nYeZzogbMVrhNRHs.pdf): coverage, what it is for and its words on coats, read 12 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-px4-all-purpose-primer/