Self-Leveling, Fast-Drying, Waterproof Sealant, Flexible Crack Repair, Suitable For Filling Cracks In Concrete, Masonry, And Stone. Self-Leveling Sealant Suitable For Driveways, Sidewalks, And Indoor/Outdoor Patio Floors. Waterproof, Fast-Drying, Flexible Concrete, Masonry, And Stone Joint Sealant, No Mixing Required.