Aqua Mix GROUT SEALER is a water-based sealer that resists water, oil and acid-based contaminants. Simplifies maintenance and does not change the appearance of the grout. Allows moisture vapor transmission. Uses: Recommended for use on cementitious sanded and unsanded grout joints for ceramic tile installations. Equally effective for interior and exterior applications. Expected Wear: Will vary depending on hardness and texture of surface, type of area, surface wear, frequency and type of maintenance products used. Expected wear is up to 5 years. Coverage: Approximately 50 to 150 sq. ft. per coat per pint, depending on size and porosity of grout joint, temperature and method of application.