Passivhaus Brickseal - Spray / Roller / Brush applied Weatherproof Masonry Damp Proof Paint

Passivhaus Brick Seal - Masonry Protection Cream | Breathable Brick & Stone Water Repellent

Passivhaus Brick Seal is a deeply penetrating masonry protection cream that waterproofs brick, stone, mortar, block and concrete without changing their appearance. A single coat by brush, roller or spray forms an invisible, breathable water-repellent barrier that lines the pores of the masonry rather than blocking them, keeping walls dry while allowing trapped moisture to escape naturally.

Stops Rain Penetration. Saves Energy. Protects Your Masonry.

Wet masonry loses thermal resistance fast. By keeping walls dry all year round, Brick Seal maximises the insulating performance of your external walls, reducing heat loss and cutting energy bills. Ideal for solid wall construction, cavity wall insulation protection, and retrofit energy improvement projects.

Where to Use Passivhaus Brick Seal

• Brick and brickwork protection
• Stone and sandstone sealing
• Mortar and render waterproofing
• Concrete and block wall protection
• Cavity wall insulation protection, preventing damp reaching insulation
• Flood resilience, reducing water absorption through masonry
• Listed buildings and heritage masonry, invisible natural finish retained

Key Features

• Deeply penetrating, bonds within the pores not on the surface
• Breathable, lets walls breathe and release moisture
• Invisible finish, no change to the appearance of brickwork or stonework
• Single coat application by brush, roller or spray
• Passivhaus certified, the highest performance standard in building fabric protection
• Suitable for brick, stone, mortar, render, block and concrete
• Solvent-free, water-based formula

Passivhaus Certified Masonry Protection

Unlike standard brick sealers and waterproof masonry paints, Passivhaus Brick Seal carries Passivhaus certification, the most rigorous independent performance standard in construction. That means independently verified breathability, water resistance and long-term durability you can specify with confidence.

How to Apply Brick Seal

Apply to clean, dry masonry by brush, roller or airless spray in a single coat. The cream penetrates the surface and cures to form a colourless water-repellent zone. Most surfaces are protected within 24 hours.