In this guide we’ll look at the best damp proof paints and water seal treatments.
We’ve compared tin size, coverage per litre, touch dry time and cost
to give you our top recommendations.

What are the Best Damp Proof Paint & Water Sealer?

IMAGERECOMMENDED PRODUCTSPRODUCTFEATURES
  • Tin size: 1 litre
  • Coverage per litre: 1 m²
  • Touch dry time: 1 hour
  • Tin size: 2.5 kg
  • Coverage per litre: 1 m²
  • Touch dry time: 2 hours
  • Tin size: 5 litres
  • Coverage per litre: 5 m²
  • Touch dry time: 1 hour
  • Tin size: 1 litre
  • Coverage per litre: 5 m²
  • Touch dry time: 30 minutes
  • Tin size: 5 litres
  • Coverage per litre: 4 m²
  • Touch dry time: 2 hours

More Detailed Damp Proof Paint & Water Seal Reviews

Drybase Liquid Damp Proof Paint

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FEATURES
  • Tin size: 1 litre
  • Coverage per litre: 1 m²
  • Touch dry time: 1 hour
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Drybase Liquid Damp Proof Paint Review

Drybase from Safeguard Europe is just one of their fantastic products designed specifically to keep the damp out of walls. They make some of the best damp proof paint, epoxy floor coverings, plaster and flexible membranes available right now.

The Liquid-Applied Damp Proof Membrane we tried out is effective at creating a waterproof barrier on your walls, floor and ceiling. The thick emulsion-type paint goes on like a dream and begins to work straight away after just two coats. It even protects your surfaces from penetrating gases like harmful rayon. It’s our favourite choice and the best interior damp proof paint we know.

Rempro Damp Proof Paint

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FEATURES
  • Tin size: 2.5 kg
  • Coverage per litre: 1 m²
  • Touch dry time: 2 hours
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Rempro Damp Proof Paint Review

Boasting a range of tough interior and exterior damp proof paint options, Rempro are a no-nonsense brand that make all their products here in the UK. We opted for the Damp Proof Liquid Tanking Membrane and took it for a test drive.

Available in up to 10 kg tins, it looks, feels and smells like a regular brilliant white paint. It’s low-odour and non-toxic, which is always a bonus as well. It’s a primary waterproofing membrane, which means it can be painted on to bare walls, to give you the best water seal possible.

Technoseal Professional Damp Proof Waterproofing Paint

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FEATURES
  • Tin size: 5 litres
  • Coverage per litre: 5 m²
  • Touch dry time: 1 hour
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Technoseal Professional Damp Proof Waterproofing Paint Review

Technoseal from Wykamol is a fast-drying latex-based damp proof paint that acts as a moisture barrier above and below ground level. It’s suitable for all types of masonry and blockwork, and even sunken posts used in fencing or decking.

We really like the consistency of Technoseal Damp Proof Membrane, it’s just like thick masonry paint with a pleasing, creamy texture. It’s easy to apply with brush or roller, which should make getting into tight corners as easy as larger flat walls or floors.

It’s another low-odour and non-toxic product that’s the best paint for damp walls if you want to tame the humidity for a few years. It even protects against methane and CO2 and can be used as a pond liner as well.

Stormdry Masonry Protection Cream - Brick Water Seal

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FEATURES
  • Tin size: 1 litre
  • Coverage per litre: 5 m²
  • Touch dry time: 30 minutes
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Stormdry Masonry Protection Cream - Brick Water Seal Review

Another winner from the Safeguard stable of professional damp proof paints is Stormdry Masonry Protection Cream. It’s an effective interior and exterior damp proof paint solution to help stop rising damp and water ingress.

Because it’s a masonry protection cream, it creates the best water seal while still allowing masonry to breathe and dry naturally. It’s BBA certified, and testing showed it works for up to a massive 25 years before any water can penetrate the colourless barrier.

It paints on to masonry or stone a white colour but dries to leave an almost invisible barrier. This retains the look of the wall while still acting as a totally effective water seal for exposed walls. It’s an expensive solution, but long lasting and non-toxic.

Ronseal 36286 Thompsons Water Seal

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FEATURES
  • Tin size: 5 litres
  • Coverage per litre: 4 m²
  • Touch dry time: 2 hours
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Ronseal 36286 Thompsons Water Seal Review

With a range of tough as nails flooring, wall and water seal products, Thompson’s are a reliable source for everything you need to keep your home from becoming damp in the first place. We took a close look at their Water Seal solution, to see how it stands up to the competition.

Firstly, it should only be applied to brick, mortar, stone and concrete. It will effectively stop freeze-thaw damage from appearing over the winter and provide a long-lasting seal against rain damage.

The consistency is like water, so it can be harder to see which parts you’ve coated, but it goes on easily with a brush or roller and is the one of the best water seal treatments you can find.

Conclusion

Homes with single skin walls, basements and buildings that are exposed to rain damage are especially prone to damp. This doesn’t just look bad but can pose health risks to anyone who lives there. We set out to find the best paint for damp walls as well as the best water seal available and must say that Drybase Liquid Damp Proof Membrane is the all-round winner. It’s an affordable, effective, and easy to use product that guarantees to stop your home from becoming damp over time.

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