A high-performance waterproofing system designed for direct application over ceramic surfaces. The system begins with a polyurethane-based adhesion-promoting sealer that enhances bonding to both porous and non-porous substrates, ensuring optimal surface preparation. It is followed by a two-component, fast-curing, cold-applied pure aromatic polyurea membrane that forms a seamless and highly durable waterproofing layer. The system provides excellent adhesion, flexibility, and strong resistance to environmental conditions, delivering long-term protection and superior mechanical performance for ceramic-tiled surfaces.