Stone mosaic tile is base grout are porous and are recommended to be sealed by proper sealer. Stone mosaic Surface-coating type sealers usually enhance color of the stone while penetrating sealers retain the natural color. Sealed surfaces should be tested periodically for effectiveness.

Ongoing preventive maintenance can usually reduce the need of problem-solving maintenance. Use a neutral cleaner with a pH between 7 to 10 and avoid all-purpose cleaners or soaps containing water-soluble inorganic or crystallizing salts, harmful alkali or acids.