Color enhancer and penetrating sealer for all types of porous natural stone and grout. Rejuvenates the color and appearance of worn, faded stone, tumbled marble, and other rustic-look stones. Can also be used to darken the color of grout. Provides long-lasting protection against oil, grease, and stains. Its water-based, low odor formula can be used indoors or outdoors. Use as a sealer and color enhancer for all stone surfaces, clay pavers, and grout. Excellent for tumbled marble and other rustic look stones. This product may not be totally effective as a color enhancer on some polished stones. For interior and exterior use. Coverage: 130 to 1900 sq. ft. (12 to 17.6 sq. m.) per 24 fl. oz. (709 ml) on polished or dense surfaces. 30 to 65 sq. ft. (2.8 to 6 sq. m.) per 24 fl. oz. (709 ml) on porous surfaces.