511 Seal and Enhance is a one step sealer and enhancer. It is a unique, solvent-base formula designed to eliminate the need to use an impregnator before using a color enhancer for maximum stain protection and superior color enhancement. 511 Seal & Enhance is safe for use on granite, marble, limestone, natural stone, slate, ceramic tile, quarry tile, grout, concrete and masonry surfaces. 511 Seal & Enhance will enhance the color and rejuvenate the appearance of tumbled, honed, acid-washed, sandblasted, flamed, textured, even polished stone and tile surfaces. It revitalizes old and worn stone and tile installations. It can be used in both interior and exterior environments and is freeze/thaw resistant. Special Features: Superior Stain Protection, Oil Resistant, Water Repellant, Will Not Yellow, Enhances Color, Grout Release, VOC Compliant. Coverage: 250 - 4,000 square feet per gallon.