LK-EM 290
Water Repellent Coating For Concrete And Masonry Surface
LK-EM 290 is a water-based, solvent-free silane water repellent designed for concrete and porous mineral surfaces. Its small molecular structure enables deep penetration, providing durable hydrophobic protection without forming a surface film. It significantly reduces capillary water absorption while maintaining the natural breathability and appearance of the substrate. LK-EM 290 helps protect against moisture-related issues such as efflorescence, spalling, and freeze-thaw damage. It is suitable for concrete, facades, precast elements, fiber-cement products and masonry substrate. It can be incorporated into cement manufacturing processes to improve moisture resistant property to increase shelf life. This product previously called LK-AQUA EM-290
Key Features
- Eco-Friendly – Water-based and solvent-free
- Deep Penetration – Excellent penetration into mineral substrates
- Rapid Water Repellency – Fast hydrophobic effect
- Storage Stable – Stable even after dilution
- Low Water Absorption – Reduces moisture ingress
Typical Properties
Applications:
- Mineral Substrate Treatment
- Fiber Cement Board Protection
- Hydrophobic Impregnation
- Water-Repellent Cement Additive
- Concrete Surface Protection
- Paint & Coating Overcoat Application
Usage guideline:
Hydrophobic impregnation of mineral substrates & building material
- Substrate: Suitable for use only on porous or semi-porous substrates.
- Dilution: dilute with water at 1:10 to 1:14. Higher concentration does not necessarily provide better performance.
- Curing: Allow the treated surface to cure at room temperature (25–30°C) for a minimum of 48 hours.
Water repellent cement:
- Dosage 0.06 – 0.1%
