Top 10 Exterior Damp Seal UK – Waterproofers

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1. Ronseal

Ronseal TWSEAL1L Thompsons Water Seal 1 Litre

Ronseal - Thompson's water seal has a unique formulation which, unlike some water proofers, penetrates the surface therefore waterproofing even after the initial beading is gone. Thompson's water Seal utilises hydrophobic technology to deliver invisible protection against water damage. Ergonomic design.
Height6.1 cm (2.4 Inches)
Length19.9 cm (7.83 Inches)
Weight1.16 kg (2.55 Pounds)
Width11.5 cm (4.53 Inches)


Breathable, Colourless Waterproofer for Brick, Stone, Mortar & Concrete, Raincheck Water Seal 5 Litre

SAFEGUARD - Colourless and solvent free waterproofer: compared to other standard water seals, quick curing time, the low VOC and water-based formula offers an array of benefits such as little odour, good coverage, and a durable finish.

Highly versatile: it can be applied by either brush, and is water-repellent on stone, roller or sprayer, mortar and brick, with the ability to bridge hairline cracks. Creates a long lasting waterproof breathable barrier, with a 10 year service life. It maintains the natural beauty of the substrate to which it is applied to. Uv-resistant formulation.

Ready for use, modifying the surface of the substrate and lining the pores, high-strength water seal which is developed using silicone hydrophobic technology, creating a water-resistant coating. Offers stability against corrosion through its formula which minimises de-icing salts, and an impermeable protection against frost through its thermal insulation properties.
ManufacturerSafeguard Europe Ltd
Height24 cm (9.45 Inches)
Length19 cm (7.48 Inches)
Weight5.3 kg (11.68 Pounds)
Width16 cm (6.3 Inches)

3. Fuze

MoGo Damp Seal 1 Litre Damp Seal

Fuze - Suitable for use on all surfaces, One coat application. Polymer based. Non flammable, low odour. Allows moisture to escape but blocks mould growth - Avoids Staining. Low hazard material, safe to use in enclosed or confined spaces.
ManufacturerFUZE Products


Wood and Stone, Colourless Waterseal for Brick, Raincheck Universal Water Seal 5 Litre Breathable

SAFEGUARD - Long-lasting up to 10 Years Protection. Even penetration - No Wet Spots; Bridges hairline cracks. High strength formulation - 5% Active Ingredient. Brick, wood & stone waterproofing. Rapid curing, Breathable, Colourless Water Seal.
ManufacturerSafeguard Europe Ltd
Height24 cm (9.45 Inches)
Length19 cm (7.48 Inches)
Weight5.4 kg (11.9 Pounds)
Width16 cm (6.3 Inches)
Part NumberWaterseal

5. Ronseal

Ronseal OCDSW250 250 ml One Coat Damp Seal, White

Ronseal - You can even put it onto damp walls. Ronseal rslocdsw250 one coat Damp Seal comes in the following:. It lets trapped moisture escape without causing anymore damage.
Height7.6 cm (2.99 Inches)
Length7.4 cm (2.91 Inches)
Weight0.32 kg (0.7 Pounds)
Width7.6 cm (2.99 Inches)
Part NumberOCDSW250

6. Everbuild

Long Lasting Protection From Water Damage, 5 Litre, Everbuild 402 High Performance Water Seal

Everbuild - As an effective water repellent on: Brick, Concrete, Render, Stone, Pebble dashing. Improved durability and beading effect. Solvent free formula & non-flammable. May be applied by conventional garden spray. May be applied to damp surfaces.
ManufacturerSika Everbuild
Height24 cm (9.45 Inches)
Length18 cm (7.09 Inches)
Weight5 kg (11.02 Pounds)
Width20 cm (7.87 Inches)
Part NumberXWAT5LAB

7. Ronseal

RONSEAL 36286 Thompsons Water Seal 5 Litre TWSEAL5L

Ronseal - Brand :- ronsEAL. In pack : 5 Litre. Product code : 36286. Manufacturer code :- RSLTWSEAL5L. Size : 5 Litre. Qty.
Height29 cm (11.42 Inches)
Length18 cm (7.09 Inches)
Weight1.35 kg (2.98 Pounds)
Width11 cm (4.33 Inches)

8. Thompsons

Thompsons One Coat Water Seal 2.5L

Thompsons - Use on brick, concrete and stone. Dries in 2 hours. Apply directly to damp surfaces. Reduces efflorescence. Stops freeze thaw damage.
Height16 cm (6.3 Inches)
Length18 cm (7.09 Inches)
Width11 cm (4.33 Inches)
Part Number32992

9. Stormdry

Proven 25 Year Protection Against Penetrating Damp 1 Litre, Stormdry Masonry Protection Cream 1L, The Only BBA & EST Certified Brick Water Seal

Stormdry - Premium high-strength wall water Seal for Brick, Stone, Mortar, Sandstone and Granite. Colourless brick sealer. Easy to apply penetrating Damp Treatment that maintains thermal properties of cavity wall insulation.

Breathable allows masonry to breathe and dry naturally. Fully cured stormdry brick damp seal will maintain natural appearance of the wall. 25 year protection stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application. Independently approved, tested & verified: ️ bba approved certificate Number: 15/5198; ️ Verified by the Energy Savings Trust as an energy saving method; ️ Tested by University of Portsmouth.
ManufacturerSafeguard Europe Ltd
Part NumberB07PRJ84NN

10. Drybase

White, Liquid DPM Damp Proof Paint, Drybase Liquid Damp Proof Membrane 1 Litre

Drybase - Effective barrier against: water, CO², water vapour, Methane & Radon. Low odour - Bitumen free formulation. Quick drying liquid DPM. Suitable for wet rooms, embedded timbers, sunken posts, under flooring, flood resilience.1l coverage: Approx. 1m².
ManufacturerSafeguard Europe Ltd