Sikalastic®-1K is a one component, flexible, fibre-reinforced mortar, based on cement modified with special alkali-resistant polymers. It also contains fine fillers, selected graded aggregates, plus special waterproofing additives to produce a flexible mortar that is ideal for waterproofing surfaces subject to flexural strain. Can be used for: Protection of concrete surfaces according to EN 1504-9, principles 1: protection against penetration (coating); 2: control of moisture (coatings); and 8 increasing resistivity (coating). Waterproof protection of concrete structures including tanks, basins, pipes, etc. Waterproofing external wall surfaces to be backfilled in ground. Internal waterproofing of walls and floors, in basements. Waterproofing of terraces and balconies over concrete or prepared existing tiles. Flexible protection coating for reinforced concrete structures against the effects of de-icing salts, freeze-thaw and carbon dioxide swell consolidation. Potable water approved according to AS4020:2005. Suitable for negative pressure to 25m. Can be applied on damp substrates. Easy to apply by brush, roller, trowel or spray equipment. Good sag resistance and easy to apply, even on vertical surfaces. Good crack-bridging properties. Very good adhesion on many substrates including concrete, cement mortars, stone, ceramics, bricks and timber. Mixing ratio can be adjusted in order to obtain the consistency and workability desired for the intended application.