RainGuard Salt Guard is a penetrating water repellent and salt intrusion inhibitor that dries down to an invisible clear finish. It helps to prevent damage from de-icers, road salts, and ocean salt spray.Formulated to penetrate the surface to prevent moisture from absorbing into the surface and causing freeze/thaw damage including cracking, spalling, and corrosion. Salt Guard does not create a film or change surface appearance.Ideal for porous unpainted, horizontal/vertical, interior/exterior, concrete, masonry, and wood surfaces such as: driveways, garage floors, patios, walkways, fences, decks, areas surrounding salt water pools, and any other surface subject to salt and freeze/thaw damage.Features & Benefits Deep penetrating 100% breathable water repellent and salt intrusion inhibitor for vertical and horizontal, interior and exterior, concrete, wood, and masonry surfaces Reduce spalling & corrosion from moisture & salts Does not alter surface appearance - leaves no surface film, no sheen, and will not yellow Covers up to 250 sq. ft. / gallon depending on surface porosity Protects surface for up to 3 years Available in concentrate and super concentrate32 oz Concentrate - Makes 2 Gallons32 oz Super Concentrate - Makes 5 Gallons