Drinking water tank internal waterproofing - MasterSeal 531

Application of 2 coats with total thickness of 2 mm of cementitious waterproof coating (one component to be mixed with defined amount of water) MasterSeal 531 from Master Builders Solutions <country> (or analogous). Physical properties of the product:Water vapour permeability (EN ISO 7783-1,2): Sd < 5 m (2mm thickness)Capillary water absorption (EN 1062-3): w < 0,05 kg/m2 h0.5Water pressure resistance (positive EN 12390-8) ≥ 1,5 barWater pressure resistance (negative UNI 8298-8) ≥ 1,0 barAdhesion to concrete (EN 1542): ≥ 1,0 N/mm2Adhesion to concrete after freeze-thaw cycling (EN 13687-1): ≥ 1,0 N/mm