A wet wipe is disclosed that provides both contact sanitization of a surface and application of a residual antimicrobial coating on the surface through the same wiping. The wet wipe comprises a substrate such as an absorbent nonwoven fabric and a liquid composition impregnated therein, the liquid composition comprising an organosilane such as the antimicrobial dimethyloctadecyl[3-(trimethoxysilyl)propyl] ammonium chloride, a non-silane quaternary disinfectant, an organic amine, and a solvent. The non-silane quaternary actives comprise a mixture of actives, and the solvent comprises 60 wt. % isopropanol or more.