Package/ 1lt, 5lt
Coverage/ About 10-15 s.m. per litre.
HMK® S731 is a ready to use silane based impregnator that reduces the penetration of water and dirt into all natural stone surfaces (soft and hard stones), concrete, and unglazed bricks. HMK® S731 is vapor permeable, suitable for interior and exterior use, and will leave little to no aesthetic change on the surface. Clean surface thoroughly before treatment using HMK® R155 Intensive Cleaner (diluted) followed by a flood rinse with water and allow at least 24 hours to dry (max residual moisture of 6-8%) before sealing. If under floor heating exists, switch it off and allow the surface to cool to room temperature.