Use Mapelastic to waterproof bathrooms, showers, balconies, terraces and swimming pools before the installation of ceramic tiles and provide a highly flexible, protective and waterproof coating to concrete structures particularly subject to cracking. Mapelastic seals hairline cracks already present in substrates. Mapelastic is supplied in two pre-measured components which must be mixed together without adding water or other ingredients. The mortar is applied with a trowel onto perfectly clean and sound surfaces that have been previously dampened with water. Mapelastic has excellent bonding properties when applied on concrete surfaces, cementitious screeds and render and stone (which must be clean and well attached to the substrate). Mapelastic can be applied up to 2 mm thick in a single coat. When applying to surfaces particularly stressed or crazed, it is essential to embed a 4 x 4.5 mm square-grid Mapenet 150. To further improve both elongation at failure and crack bridging of Mapelastic, we recommend inserting Mapetex Sel, macro-holed non-woven polypropylene fabric.