Johnstone's Trade Aqua Guard Primer Undercoat
Primer, undercoat and sealer · Johnstone's Trade · Primer
Johnstone's Trade Aqua Guard Primer Undercoat comes in 1 L, 2.5 L and 5 L. The catalogue holds no coverage figure of the maker's for it yet.
- Coats
- No single numberthe document read gives none
- Tin sizes
- 1 L, 2.5 L, 5 L3 sizes in the catalogue
What it is for
In the maker's own words. A primer, undercoat or sealer goes where the surface needs it, which may be a whole wall of new plaster or drywall or only bare or stained patches, so this page gives no number of tins for a room: measure what you are priming and use the figures below. The planner counts the paint over it, not the primer.
“Johnstone’s Trade Aqua Guard Primer Undercoat is an innovative, water-based primer and undercoat that is ideal for interior wood”
Where to buy it
The shops' own searches for it. BuildBatch sells nothing and compares no prices.
Search the shops for Johnstone's Trade Aqua Guard Primer Undercoat
- Amazon UK, opens in a new tab
- B&Q, opens in a new tab
- Homebase, opens in a new tab
- Screwfix, opens in a new tab
- Toolstation, opens in a new tab
- Wickes, opens in a new tab
Each link opens that shop’s own search for this product, in a new tab. BuildBatch earns nothing from these links. BuildBatch does not know whether a shop has it, or what it costs there today.
Coats
The document read for this page gives no number of coats for Johnstone's Trade Aqua Guard Primer Undercoat. BuildBatch does not guess one: the tin table shows one coat and two side by side, and each coat covers the same surface again. Follow the tin's own instructions.
Tin sizes
- 1 L tin
- 2.5 L tin
- 5 L tin
Questions about Johnstone's Trade Aqua Guard Primer Undercoat
How many coats does Johnstone's Trade Aqua Guard Primer Undercoat need?
The document read for this page gives no number of coats for Johnstone's Trade Aqua Guard Primer Undercoat. Follow the tin's own instructions.
What is Johnstone's Trade Aqua Guard Primer Undercoat for?
Johnstone's Trade says: “Johnstone’s Trade Aqua Guard Primer Undercoat is an innovative, water-based primer and undercoat that is ideal for interior wood” (Johnstone's Trade Aqua Guard Primer Undercoat product page, read 11 October 2026).
What tin sizes does Johnstone's Trade Aqua Guard Primer Undercoat come in?
The catalogue lists 1 L, 2.5 L and 5 L. A shop may not stock every size.
Other primers
In alphabetical order, with each maker's own figures. A maker measures its coverage its own way, so the figures are not a test of one paint against another. Every product under primer, undercoat and sealer.
Leyland Trade Acrylic Primer Undercoat
Leyland Trade · Primer
- Coverage
- not stated here
- Tins
- 750 ml, 2.5 L and 5 L
Leyland Trade All Purpose Primer
Leyland Trade · Primer
- Coverage
- not stated here
- Tins
- 750 ml and 2.5 L
Leyland Trade · Primer
- Coverage
- not stated here
- Tins
- 750 ml and 2.5 L
Macpherson Acrylic Primer Undercoat
Macpherson · Primer
- Coverage
- not stated here
- Tins
- 1 L, 2.5 L and 5 L
More from Johnstone's Trade
6 of the 7 other Johnstone's Trade products in the catalogue, by name. All Johnstone's Trade products.
Johnstone's Trade Acrylic Durable Matt
Matt
- Coverage
- about 11 to 13 m² a litre
- Coats
- 2 coats
- Tins
- 2.5 L, 5 L and 10 L
Johnstone's Trade Aqua Guard Durable Gloss Finish
Gloss
- Coverage
- not stated here
- Tins
- 1 L, 2.5 L and 5 L
Johnstone's Trade Aqua Guard Durable Matt Finish
Matt
- Coverage
- not stated here
- Tins
- 1 L, 2.5 L and 5 L
Johnstone's Trade Cleanable Matt
Matt
- Coverage
- not stated here
- Tins
- 2.5 L, 5 L and 10 L
Johnstone's Trade Covaplus Vinyl Matt
Matt
- Coverage
- up to 17 m² a litre
- Tins
- 1 L, 2.5 L, 5 L and 10 L
Silk
- Coverage
- about 10 to 12 m² a litre
- Tins
- 1 L, 2.5 L, 5 L and 10 L
Where the figures come from
- What it is for: Johnstone's Trade, Johnstone's Trade Aqua Guard Primer Undercoat product page. Read on 11 October 2026.
This page was written with AI tools from the maker's own documents; it is not yet checked by a tradesperson. The figures are the maker's, and a maker's figure is their best case: follow the tin's own instructions.
- Paint coverage per litre: what a figure per litre means, and how to read the one on a tin.
- How many coats of paint do I need?: when two coats are enough, and what a third costs in litres.
- How far does a tin of paint go?: what 1, 2.5, 5 and 10 litre tins cover at three coverages.
- Mist coat ratio for new plaster: why bare plaster takes more paint than any figure on a tin.
- What you need to paint a room: everything else the job takes, from filler to dust sheets.
- Paint calculator: the litres and tins for a coverage of your own.
- How we compare products: what “worked out” and “Ad” mean on these pages.