Stonefish SE is a heavy-duty, solvent-based, silane-siloxane designed to enhance color, impart water repellency and stain resistance to a wide variety of natural stone, concrete and aggregate surfaces. The silanes react chemically and bond with the substrate to form an insoluble water-resistant treatment within 24-72 hours after application. Naturally, enhance your stonework with the easy application of our stonefish stone enhancer. This product goes far with approximately 1,000 sqft of coverage per gallon. One gallon container of our Stonefish Stone Enhancer.