This high-quality, all-purpose sealant is perfect for all your sealing jobs. Its long-lasting waterproof seal will prevent air, moisture, dust and pests from passing through cracks and joints. It also allows for the natural seasonal expansion and contraction of building materials without cracking or adhesion loss. Cured caulk is mildew-resistant and cleans up easily with soap and water. Contractor pack is designed for sale by case only.