Best brick sealer 5 litre from this set
Updated: 22 October 2026
You want a can for porous brick or stone, and four listings in this set share a 4.4 star line that looks like the same answer. It is not. The [stone sealer comparison](/hub/garden-supplies/stone-sealer) scores seven amazon.co.uk products on fill, listing fit, UK review outcomes and price. A qualifying purchase from that page can earn us a commission at no extra cost to you. This page names the top pick and the best value for a straightforward wall job, and the cans you should walk past when the surface is a hearth, a bird bath or an unconfirmed kit.
You want a can for porous brick or stone, and four listings in this set share a 4.4 star line that looks like the same answer. It is not.
You want a can for porous brick or stone, and four listings in this set share a 4.4 star line that looks like the same answer. It is not. The stone sealer comparison scores seven amazon.co.uk products on fill, listing fit, UK review outcomes and price. A qualifying purchase from that page can earn us a commission at no extra cost to you. This page names the top pick and the best value for a straightforward wall job, and the cans you should walk past when the surface is a hearth, a bird bath or an unconfirmed kit.
Our top picks
| Badge | Product | Volume | Breathable claim | Listing note | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Sika Everbuild 402 Water Seal, 5 litre | 5 l | Not stated | Weight agrees | 9.2 | about £13.80 | View offer |
| Best value |  SAFEGUARD Raincheck Eco water seal, 5 litre | 5 l | Claimed | Unit count 5 ml | 8.1 | about £18.00 | View offer |
 HG HG natural stone impregnator, 1 litre | 1 l | Claimed | Spray vs roller | 7.3 | about £25.43 | View offer |
On this page
What the score is allowed to say
On this set's method, Everbuild 402 scores 92 and carries the top-pick badge. Raincheck Eco scores 81 and carries the best-value badge among the other products that still clear 80. HG product 32 scores 73. NOON'S UP scores 57. Hotspot scores 49. Raincheck Universal scores 48. Nano Z scores 40. Stars alone do not tell you which 5 litre brick sealer to buy, and they do not tell you to force a wall can onto a cracked bowl.
If you still need the fork between wall, patio, hearth and porcelain, use the stone sealer buying guide first.
Top pick, Everbuild 402
Everbuild 402 is the confirmed 5 litre silicone water seal at £13.80, with a 5 kg weight that agrees with the fill, and 4.4 from 5,495 amazon.co.uk reviews. UK texts mostly describe rain beading on external brick once the coat has dried. The Sika sheet names brick, stone, plaster and concrete, allows a surface that is damp but not wet, refuses painted surfaces, wood, plastic, rubber and fishponds, and wants the second coat within one hour. Coverage on that sheet is about 5 to 8 m² per litre.
Who should skip it: you need a wiped stain impregnator for a hearth, you are chasing a bird-bath repair, or you plan to put it on paint or timber. One patio review reports gloss, footprints and slip on old slabs. Two reviews describe asbestos-cement roofs. The listing does not name that use, and this page does not teach coating those sheets. For coat timing and masking, use the how to apply brick sealer page. For gutters and pointing before any silicone, use the penetrating damp brick sealer page.
Best value, Raincheck Eco
Raincheck Eco is the UK-made can at £18.00, titled 5 litres, with a 5.3 kg weight that supports the fill, and 4.4 from 2,467 reviews. The title says breathable. UK reviews describe beading on exterior brick, often with a pump sprayer and two coats while the first is still tacky. Safeguard's current Eco page states about 3.5 m² per litre and a shallow treated depth of about 1 to 2 mm. Older PDF figures are not what this page repeats. The awkward line is the unit-count field that says 5.0 millilitre. That field disagrees with the title and the weight.
Raincheck Universal at £42.99 is not the same ASIN. Its title includes a sprayer and 5 litres, but the file weighs 362 g and lists 310 ml. Reviews talk about the sprayer more than the liquid, and two UK texts report a missing or leaking pump. Do not treat Universal as a premium version of Eco. It is a kit whose fill this capture does not prove.
The cans that are a different job
HG product 32 at £25.43 is a 1 litre natural-stone impregnator for marble, limestone, sandstone and granite, with surplus wiped after about 10 minutes. It scores 73 because it is not a 5 litre wall flood coat, not because UK hearth and slate reviews called it useless. One buyer returned it for a granite kitchen worktop even though granite is in the title. Test a patch on granite. Do not rank HG as a failed brick sealer.
Hotspot at £19.95 is a 500 ml fireplace tin, and one limestone fireplace was left with brown streaks. It is not a house-wall can. NOON'S UP at £19.00 has 4.0 from 857 reviews, and many bird baths still emptied after several coats. Nano Z at £24.00 for 400 ml has one UK review in the file and a part number that says Nanostone500.
If the brief was never a wall, match the family first. If the brief is a wall with a damp patch indoors, fix the water path first. The best can in this set still does not replace a gutter or open joints.
Common questions
Which can is the top pick for a porous wall?
Everbuild 402, on this set's score method, when the fill, price and brick beading reviews match the job you actually have.
Why is Raincheck Eco best value if Everbuild is cheaper?
Best value is awarded among the other products scored 80 or above. Eco clears that bar. Everbuild already holds the top-pick badge and the lower price.
Should I buy the £42.99 sprayer kit?
Not on the strength of this file. The weight and unit count do not support a 5 litre claim.
Is HG a worse sealer because it scores 73?
It is a different product: a wiped impregnator for natural stone, not a large wall water seal. The score reflects that fit.
Does 4.0 from 857 reviews mean the bird bath is fixed?
No. Many UK texts still report leaks after several coats. Count is not the same as success.
What should I skip if I have limestone?
Skip Hotspot if you saw the streaked fireplace review. For a hearth stain job, HG is the closer listing, with a test patch first. For a wall, use a wall product only on eligible porous masonry.
Are these scores a lab test?
No. They combine amazon.co.uk evidence, listing fit, UK review outcomes and price for this seven-product set.
Related pages
Sources
Public UK sources for this comparison. Prices, stars and review counts are the amazon.co.uk listings in this set, captured 19 October 2026. Page updated 22 October 2026.
- Sika Everbuild 402 Waterseal sheet, March 2023 (retrieved 22 October 2026)
- Safeguard Raincheck Eco water seal (retrieved 22 October 2026)
- Safeguard Raincheck application guide (retrieved 22 October 2026)
- HG natural stone impregnating protector (retrieved 22 October 2026)
- ECOPROTEC: sealing stone outdoors (retrieved 22 October 2026)
- Brick Development Association: alteration and repair of brickwork (retrieved 22 October 2026)
- SPAB: rainwater penetration (retrieved 22 October 2026)
- HSE: asbestos cement (a16) (retrieved 22 October 2026)