Size: 29 fl. oz - Caulking gun should have large cartridge capacity. Looking for a concrete sealant for your driveway, garage, or warehouse? SSika Self-Leveling Sealant is a premium, one-component polyurethane sealant designed for horizontal concrete joints. It flows effortlessly into cracks and gaps, providing a durable, flexible, and waterproof seal. Ideal for driveways, sidewalks, garages, patios, and other concrete surfaces, this sealant remains elastic to accommodate joint movement while resisting weathering and cracking. The 29 fl oz cartridge is perfect for larger projects, ensuring a professional-grade finish without the need for tooling.