Reactive cement‑based hardeners, commonly referred to as concrete sealers and hardeners, concrete penetrating crystalline agents, cement‑base strength enhancers, and floor‑dusting treatment agents for cement floors. It penetrates into the concrete through the capillary pores of the cement‑based surface, where it chemically reacts with ettringite to form hard crystalline compounds similar to hardened cement paste. At the same time, it activates unhydrated cement particles, promoting further hydration and consolidating the concrete into a robust monolithic structure. By sealing the internal capillary pores, it enhances the concrete’s strength and density, thereby improving its overall physical properties—resulting in enhanced impermeability, wear resistance, hardness, slip resistance, acid‑alkali corrosion resistance, a bright, dust‑free, and easily cleanable finish, and an integral appearance akin to marble. Its service life matches that of the concrete itself.