Sika 402 WaterSeal is a high performance, transparent masonry water repellent designed to protect exterior surfaces from water penetration. The advanced silicone resin formula penetrates deep into the substrate to create long-lasting protection while still allowing the surface to breathe.
Ideal for brickwork, stone, render and pebbledash, this water-based treatment creates a strong water-beading effect that helps reduce damp penetration, frost damage and weathering while maintaining the natural appearance of the surface.
Easy to apply by brush, roller or garden sprayer, the solvent-free formula is non-flammable and suitable for use on slightly damp surfaces, making it a practical solution for both DIY users and professional tradespeople.
Key Features
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High performance water repellent masonry sealer
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Protects brick, stone, render and pebbledash
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Deep penetrating silicone resin formula
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Long lasting water beading protection
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Allows surfaces to breathe while repelling water
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Solvent free and non-flammable formula
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Suitable for application by brush, roller or sprayer
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Can be applied to slightly damp surfaces
Specifications
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Brand: Sika
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Product Name: 402 WaterSeal
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Size: 5 Litres
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Colour: Milky white liquid, dries clear
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Coverage: approx 5 to 8 m² per litre depending on surface porosity
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Application: Brush, roller or garden sprayer
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Substrates: Brick, stone, masonry, render, pebbledash
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Technology: Silicone resin water repellent
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Use: Exterior masonry protection
Approximate dimensions and specifications may vary slightly depending on packaging batch.
Brand Information
Sika is a global manufacturer of specialist construction chemicals and building materials, supplying professional solutions for sealing, bonding, waterproofing and protection used across construction and industry worldwide.
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