# Macpherson Undercoat

Primer, undercoat and sealer · Macpherson

Macpherson Undercoat covers up to 15 m² a litre, by Macpherson's own figures.
Source: Macpherson, Macpherson Undercoat data sheet (dated January 2016), read 12 October 2026.

Macpherson gives no single number of coats for it: “Apply one or two coats as required”.

What it is for, in the maker's words: “Macpherson Undercoat helps you get the most from Macpherson Gloss” (Macpherson Undercoat data sheet (dated January 2016), read 12 October 2026).

## Coverage

Macpherson states up to 15 m² a litre. The maker's words: “Spreading rate Up to 15m² per litre depending on surface texture”.
- 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. Macpherson's own words: “Spreading rate Up to 15m² per litre depending on surface texture”.
- 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

Macpherson gives no single number of coats for Macpherson Undercoat. Its words: “Apply one or two coats as required”. Follow the tin's own instructions.

## Tin sizes

| Tin | One coat | Two coats |
|---|---|---|
| 1 L | up to 15 m² | up to 7.5 m² |
| 2.5 L | up to 37.5 m² | up to 18.75 m² |
| 5 L | up to 75 m² | up to 37.5 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/macpherson-undercoat/#where-to-buy. BuildBatch sells nothing and compares no prices.

## Questions

**How much does a litre of Macpherson Undercoat cover?** Macpherson states up to 15 m² a litre for Macpherson Undercoat (Macpherson Undercoat data sheet (dated January 2016), 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 Macpherson Undercoat cover?** At the maker's figure a 5 L tin covers up to 75 m² in one coat, or up to 37.5 m² in two coats. That is the litres times the coverage per litre, with nothing added for waste.

**How many coats does Macpherson Undercoat need?** Macpherson gives no single number of coats for Macpherson Undercoat. Its words: “Apply one or two coats as required”. Follow the tin's own instructions.

**What is Macpherson Undercoat for?** Macpherson says: “Macpherson Undercoat helps you get the most from Macpherson Gloss” (Macpherson Undercoat data sheet (dated January 2016), read 12 October 2026).

**What tin sizes does Macpherson 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

- Macpherson, Macpherson Undercoat data sheet (dated January 2016) (https://professional.crownpaints.com//content/uploads/product-sync-resources/BEC4WZDNmusQ9ZhC.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/macpherson-undercoat/