Natural-effect deep penetrating moisture-proof water-repellent as it does not alter the appearance or breathability of the treated material. It can be applied on terracotta, earthenware, bricks and all absorbent stone materials, cement, grit and composites. It reduces water absorption and effectively counteracts the formation of salt efflorescence due to rising damp on floor and wall surfaces. Breathable water-based product ideal for water-repellent treatment against rising damp indoors and outdoors on even not perfectly dry materials. HIDRONAT is ready to use. Apply pure on clean, dry or evenly moist surfaces with a brush, pad or wax spreader. Allow to dry at least 4-6 hours before applying a second coat. Approximate consumption: 10 sqm/1 litre. Avoid application on very hot or very cold surfaces (> 40°C or < 5°C).