Coverage will vary upon the porosity of the substrate with the average being approximately 600 to 1,000 square feet per gallon. A high performance water based penetrating conditioner impregnator specially designed to protect concrete, stucco, masonry surfaces, brick, clay roofing tile, unglazed ceramic and terracotta tiles, marble, granite, slate, terrazzo, sandstone, limestone, and quarry tile against stains, dust, dirt, water, and oil. Also ideal for use on walkways, patios, decks, exterior entryways and other surfaces that need to be protected from water and moisture.