This high-performance waterproofing system combines a two-component cementitious membrane with a flexible acrylic-based protective topcoat to deliver durable, multi-layer protection. The cementitious layer offers excellent crack-bridging capability and withstands positive water pressure up to 7 bar and negative pressure up to 5 bar, ensuring robust protection against water ingress, freeze–thaw cycles, and carbonation. The acrylic topcoat is fiber-reinforced to enhance flexibility, mechanical strength, and crack resistance, while providing superior UV and weather resistance. The system forms a seamless, long-lasting protective barrier suitable for a wide range of exposed and structural applications.