Two-component flexible waterproof cementitious mortar, for basements, foundations, cellars, floors, roofs, tunnels, water tanks (suitable for potable water)... Bridges hairline cracks and is recommended for substrates expected to show hairline cracks due to thermal variations or vibrations, e.g. balconies, terraces, swimming pools and wet areas. Used on positive & negative sides. Can be backfilled, covered (with tiles, stone or other material), plastered or left as finish coat. Vapor permeable. Recommended thickness: 2-5 mm Application: by brush, roller or trowel