Fast-drying and easy to apply, AquaShield causes water to bead up and roll off concrete surfaces, protecting them from damage and freeze/thaw strain. It does not alter slab appearance and leaves the slab breathable. The product is low-VOC, low-odor, and nonflammable. Applied by spray, roll or mop, it dries within an hour. American Decorative Concrete. 800-592-9320.