HydroShield Stone Cleaner Concentrate is a neutral pH water base formulation that has anti-bacterial cleaning power. It is sold in a concentrate and is perfect to add as a mop treatment when maintaining large square footage areas. It is designed to safely and effectively clean stone that has been protected with HydroShield Stone Protection. When used regularly it will enhance the natural beauty and condition the stone. It is gentle enough to use everyday. It is intended for stone such as marble, granite, limestone, slate, as well as concrete and quarry tile.