10 Best Brick Sealer Exterior in The UK
Last updated on 06/09/2025
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Best Choice
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Raincheck Universal Water Seal (5 Litre & Sprayer) Breathable, Colourless, Exterior Brick, Wood and Stone Sealer
SAFEGUARD
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SAFEGUARD
Raincheck Universal Water Seal (5 Litre & Sprayer) Breathable, Colourless, Exterior Brick, Wood and Stone Sealer
Free Shipping
Why We Love It
- Rapid curing, breathable seal.
- Long-lasting 10 years protection.
- Fully adjustable wand nozzle.
Main Highlights
- BRICK, WOOD & STONE Waterproofing
- Rapid Curing, Breathable, Colourless Water Seal
- Long-Lasting up to 10 Years Protection
- High Strength Formulation - 5% Active Ingredient. Even Penetration - No Wet Spots; Bridges hairline cracks
- Pump Action Pressure Sprayer - High quality build. Fully adjustable wand nozzle from spray to mist, lockable trigger mechanism and water flow regulator
Value for Money
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Polar Dust Proof Brick Sealer - 5 Litre | Protect Interior & Exterior Surfaces | Quick-Drying Brick Sealant for Brick & Masonry Floors & Walls | Attractive Sheen Finish | Easy Application
Polar Specialist Coatings
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Polar Specialist Coatings
Polar Dust Proof Brick Sealer - 5 Litre | Protect Interior & Exterior Surfaces | Quick-Drying Brick Sealant for Brick & Masonry Floors & Walls | Attractive Sheen Finish | Easy Application
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Why We Love It
- Long-lasting protection for surfaces.
- Easy and quick application.
- Attractive sheen finish provided.
Main Highlights
- High Performane Sealer & Dust Proofer: The perfect solution for creating a dustproof surface while adding a protective layer to brick or masonry floors and walls. This water sealant for brickwork forms a robust coating that extends the lifespan of brickwork, making it easier to clean.
- Long lasting Protection: Provides enduring dust-free protection for brick or masonry surfaces. Our brick waterproof sealant has a low viscosity, ensuring excellent penetration into substrate pores. It soaks deeply into the brick, sealing the voids and delivering a water-resistant finish to both interior and exterior surfaces.
- Interior & Exterior Applications: Polar Brick Sealer is ideal for treating dust-prone brick or masonry in factories, warehouses, kitchens, food processing areas, garages, workshops, and other industrial or domestic environments. Suitable for both internal and external applications, it is designed to penetrate and bind brick, sand/cement floors, blockwork, and masonry walls.
- Easy To Apply: Our Brick Sealer exterior is straightforward to apply. Ensure the surface is clean and dry. Apply a minimum of 2 coats for optimal coverage. Use a brush or roller for excellent application; 5 litres covers up to 25㎡. For high or outdoor walls, use the Polar Extendable Roller. Achieve immediate dustproofing results with a drying time of 1-2 hours. Allow the surface to dry completely before applying additional coats.
- Attractive Sheen Finish: Provides an appealing mid-sheen finish to brick and masonry surfaces. This brick sealer interior effectively dustproofs and seals while giving a subtle sheen. Comes in a clear liquid, 5L container, ample quantity for various applications.
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Stormdry Masonry Waterproofing Cream (1 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer
Stormdry
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Stormdry
Stormdry Masonry Waterproofing Cream (1 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer
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Why We Love It
- Provides 25 year moisture protection.
- Maintains warm, dry walls.
- Preserves natural wall appearance.
Main Highlights
- PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
- 25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
- BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
- COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
- INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth
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Smartseal Brick Sealer - 10 Year Protection - Brick Waterproofer & Breathable Brick Sealant. Safe, Easy To Apply, Water Resistant & Protects From Damp - Solvent Free, Premium Brick Sealer (1 Litre)
SmartSeal
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SmartSeal
Smartseal Brick Sealer - 10 Year Protection - Brick Waterproofer & Breathable Brick Sealant. Safe, Easy To Apply, Water Resistant & Protects From Damp - Solvent Free, Premium Brick Sealer (1 Litre)
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Why We Love It
- Long-lasting damp-proofing protection.
- Enhanced water repellency feature.
- Quick-drying brick sealer.
Main Highlights
- 🧱LONG-LASTING DAMP-PROOFING PROTECTION - A premium-grade exterior brick sealer that offers exceptional brick waterproofing protection for your exterior brick surfaces. Engineered with advanced formulation, it provides outstanding damp-proofing capabilities that can endure for an impressive duration of 10 years. Enjoy long-lasting peace of mind as our brick sealer safeguards your brickwork & masonry, preserving its integrity and appearance.
- 💧 ENHANCED PROTECTION AND WATER REPELLENCY - Unlock the full potential of your brick surfaces with our exceptional Brick Waterproofer & Sealer. Not only does it provide reliable protection as a brick sealant for exterior applications, but it also offers an additional benefit—an exceptional Water Repellency feature. The chemical structure of the sealer is altered upon application, modifying how the surface reacts to various liquids.
- 🛡️ SOLVENT-FREE PROTECTION - Our exceptional Brick Sealer is a solvent-free solution that offers robust protection for your exterior brick surfaces. Despite being solvent-free, it exhibits remarkable resistance to staining, effectively repelling oil as well as inhibiting the growth of algae, and lichen spores. Say goodbye to unsightly blemishes and enjoy the long-lasting beauty of your brick tiles and masonry.
- 🧱 PROTECTS A RANGE OF SURFACES, INSIDE AND OUT - Our versatile exterior and interior Brick Sealer is perfect for use on a variety of surface types including brickwork, cement, walls, concrete, and facades. This brick waterproofer and sealer can be applied both indoors and outdoors, providing comprehensive protection against water ingress. Enjoy peace of mind knowing that our Brick Sealer offers reliable protection without compromising aesthetics.
- ⏱️QUICK-DRYING BRICK SEALER - Experience the convenience of our Brick Sealer, offering a one-coat application that is touch dry in just 2-3 hours. Within 24 hours, it becomes water resistant, providing effective waterproofing protection for your exterior brick surfaces. Apply easily with a roller or sprayer, ensuring a smooth and efficient process. With an average coverage of 5m² per litre, our Brick Sealer offers exceptional value.
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TWSU5L 5L Thompson's One Coat Water-Seal
Ronseal
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Ronseal
TWSU5L 5L Thompson's One Coat Water-Seal
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Why We Love It
- Highly resists water damage.
- Effective silicone micro emulsion present.
- Applicable on damp surfaces.
Main Highlights
- Highly water repellent
- Silicone micro emulsion
- Can be applied to damp surfaces
- Outlasts conventional waterproofers
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Raincheck Universal Waterseal - Brick, Wood, Concrete, Stone Water Seal
SAFEGUARD
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SAFEGUARD
Raincheck Universal Waterseal - Brick, Wood, Concrete, Stone Water Seal
Free Shipping
Why We Love It
- Protects diverse surfaces effectively.
- Provides waterproof assurance.
- Adaptable to varying materials.
Main Highlights
- BRICK, WOOD & STONE Waterproofing
- Rapid Curing, Breathable, Colourless Water Seal
- Long-Lasting up to 10 Years Protection
- High Strength Formulation - 5% Active Ingredient
- Even Penetration - No Wet Spots; Bridges hairline cracks
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Brick Sealer by Shieldon Protects - Transparent, Waterproof, Breathable Membrane - 5 Year Protection - Interior & Exterior Use - Solvent Free (6 Litre)
S Shieldon Protects
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S Shieldon Protects
Brick Sealer by Shieldon Protects - Transparent, Waterproof, Breathable Membrane - 5 Year Protection - Interior & Exterior Use - Solvent Free (6 Litre)
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Why We Love It
- Powerful water-repellent protection.
- Safe and solvent-free formula.
- Easy one-coat application.
Main Highlights
- HIGH QUALITY PROFESSIONAL SEALER - The Shieldon Protects Brick Sealer contains powerful water-repellent nano-particles that penetrate deep into the porous structure of the brick surface, forming a transparent hydrophobic layer (waterproof coating). It not only repels water but also makes the brick surface highly resistant to dirt and staining and inhibits the growth of moss, algae, and lichen spores
- SAFE & SOLVENT FREE - This premium grade brick sealer is water-based, solvent free and contains no oils and volatile VOC components, thus it does not give off any unpleasant smells. Shieldon Brick Sealer is a transparent waterproof coating agent that does not alter the appearance or colour of the treated surfaces
- LONG LASTING PROTECTION - The Shieldon Brick Sealer provides up to 5 years of protection. It creates a damp proof membrane (water barrier) that is vapour-permeable and allows bricks to breathe
- INTERIOR & EXTERIOR USE - This Brick Sealer can be used on both interior and exterior brick surfaces. Our sealer can be applied both on new and old bricks, providing comprehensive protection and a durable finish
- EASY TO APPLY - Shake the container before use and evenly apply the Shieldon Brick Sealer with a masonry roller or masonry paint brush. Avoid streaks or stagnation of excess sealer. Only one coat is required. 6 litres of the product covers between 20 and 60m2, depending on surface absorbance and method of application
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Everbuild 402 Water Seal – High Performance – Long Lasting Protection From Water Damage – Solvent-Free Formula – Water Repellant – 5 Litre
Everbuild
26% Off
Everbuild
Everbuild 402 Water Seal – High Performance – Long Lasting Protection From Water Damage – Solvent-Free Formula – Water Repellant – 5 Litre
26% Off
Why We Love It
- Water repellency with breathability.
- Long-lasting, transparent protection.
- Damp surface application possible.
Main Highlights
- HIGHLY WATER REPELLANT – Creates a waterproof coating on a range of materials whilst still allowing the surface to breathe and any moisture vapour to evaporate, including brick, concrete, render, stone and pebble dashing, although is unsuitable for rubber, plastic or timber.
- HIGH PERFORMANCE – Provides protection that lasts through deep penetration into the material and a durable matt finish that's transparent once dry.
- SOLVENT-FREE FORMULA – It's water-based for easy clean up, contains no solvents, and is non-flammable.
- EASY TO APPLY – Apply this milky-white liquid to clean, dry or damp surfaces using a roller, brush or low-pressure garden sprayer.
- CAN BE APPLIED TO DAMP SURFACES – The water-based formula soaks into the material for long-lasting protection, making damp (not wet or submerged) surfaces acceptable.
- TWO SIZES AVAILABLE – Choose from a 5-litre or 25-litre jerry can.
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RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L), Clear
Thompson's Water Seal
Free Shipping
Thompson's Water Seal
RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L), Clear
Free Shipping
Why We Love It
- Direct application to damp surfaces.
- Prevents freeze thaw damage.
- Quick drying in 2 hours.
Main Highlights
- Apply directly to damp surfaces
- Stops freeze thaw damage
- Use on brick, concrete and stone
- Dries in 2 hours
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Raincheck Water Seal 5 Litre - Breathable, Colourless Waterproofer for Brick, Stone, Mortar & Concrete
SAFEGUARD
Free Shipping
SAFEGUARD
Raincheck Water Seal 5 Litre - Breathable, Colourless Waterproofer for Brick, Stone, Mortar & Concrete
Free Shipping
Why We Love It
- Protects with silicone technology.
- Breathable, maintains natural beauty.
- Versatile application methods.
Main Highlights
- Ready for use water seal which is developed using silicone hydrophobic technology, modifying the surface of the substrate and lining the pores, creating a water-resistant coating.
- Creates a breathable waterproof barrier, which still allows the wall to breathe.
- Colourless and solvent free waterproofer: compared to other standard water seals, the low VOC and water-based formula offers an array of benefits such as little odour, quick curing time, good coverage, and a durable finish. It maintains the natural beauty of the substrate to which it is applied to.
- Highly versatile: it can be applied by either brush, roller or sprayer, and is water-repellent on stone, mortar and brick, with the ability to bridge hairline cracks.
- Offers stability against corrosion through its formula which minimises de-icing salts, and an impermeable protection against frost through its thermal insulation properties. UV-resistant formulation.