Silac
Penetrating Water Repellent


Technical Documents
Silac
SILAC is an acrylic-modified silicone water repellent for porous exterior concrete, stone, masonry, blockwork, plaster, and brick surfaces. It penetrates into the surface to reduce water absorption while still allowing trapped moisture to evaporate out. SILAC is especially suited to highly porous materials such as Oamaru stone, concrete block, and weather-exposed masonry where rain penetration, dampness, moss growth, staining, or surface deterioration are a concern. A practical choice for protecting absorbent exterior surfaces without applying a heavy coating or changing the character of the substrate.
Key Points
- Acrylic-modified silicone water repellent
- Reduces water absorption in porous surfaces
- Maintains breathability of substrate
- Suitable for stone, masonry, concrete, and brick
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