Water Guard Crysta Coat 102 Water Guard Crysta Coat 102 is a cementitious economical slurry waterproofing system by crystallization. The active chemicals in the applied Water Guard Crysta Coat 102 reacts with the free lime and moisture present in the capillary track in the concrete to form an insoluble crystalline complex. The crystals block the capillaries and minor shrinkage cracks in the concrete to prevent any further water ingress. Water Guard Crysta Coat 102 can be used for various concrete elements in structures such as marine and costal structures, rafts, precast panels, water storage tanks, highways, runways, roofs decks, bridges. Cut and cover tunnels, silos, carparks, swimming pools, pipes, lift pits etc.