HYDRO-DEFEND WATER-BASED CONCRETE & DRIVEWAY PROTECTOR Give bare concrete and masonry surfaces the protection they need for the long run with the H&C HYDRO-DEFEND WATER-BASED CONCRETE & DRIVEWAY PROTECTOR. It’s a clear, water-based, siloxane water repellent designed to protect bare concrete, driveways, and masonry surfaces. Features: Water-based formulation. Protects against damaging freeze/thaw cycles. Reduces intrusion of water, de-icing salts and other contaminants. Penetrates deeply for long-lasting protection. Will not alter the color appearance or texture of the treated surface. User-friendly, soap and water clean-up. For Use On: Concrete, Stucco, Concrete Block, Stone, Brick, Patios, Walkways, and Pool Decks.