5L KMSI Seal C | SIF
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KMSi Seal C is a concentrated siliconate sealer designed for deep-penetrating protection of porous masonry surfaces like plain grey concrete and limestone. It’s engineered to repel water, reduce efflorescence, and minimise moisture-related damage — all while leaving a natural, unchanged finish.
Ideal for retaining walls, pavers, and exposed porous concrete, this is a go-to sealer for structural durability without the gloss or colour change.
One 5L concentrate makes 20L Ready-To-Use, offering excellent coverage and long-term economy.
KEY BENEFITS
Superior water repellence for limestone and porous concrete
Minimises water ingress, efflorescence, and staining
Clear, natural finish – does not darken or gloss the surface
Deep penetration for long-lasting substrate protection
UV-stable, wear-resistant and breathable
Resists fungal and algal growth
Can be applied to damp or wet surfaces
5L concentrate makes 20L RTU (Ready To Use)
RECOMMENDED USES
Plain grey concrete
Limestone block retaining walls
Porous uncoloured masonry
Paving and hardscape exposed to weather
Not recommended for coloured or decorative concrete — use silane/siloxane alternatives for those surfaces.
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