This 5-litre clear water seal from Sika Ltd is designed for use on external masonry surfaces such as brick, block, concrete, and stone. It penetrates deeply, forming a water-repellent barrier within the substrate without noticeably altering the surface appearance.
On site, it is commonly applied by brush or spray to treat porous walls, reducing water ingress from rain and helping prevent issues like damp, frost damage, and efflorescence. Suitable for both refurbishment and new build work, it allows treated surfaces to continue breathing while offering protection against moisture.
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