9900 Silicone Waterproof Sealant, Permanent Flexible Sealant for Roof, Wall, and Concrete Cracks, Outdoor & Indoor Use, Heat, Tear, and Water Resistant, in Black, White, and Transparent

[Permanent Waterproof & Weatherproof Shield] Engineered to form a permanent, impenetrable barrier against water, moisture, and extreme weather conditions. This sealant remains effective through scorching heat, freezing rain, and UV exposure, providing year-round protection for your home. [Superior Flexibility & Tear Resistance] Features professional-grade tensile strength (1.45 MPa) and exceptional elongation (186%). This allows the sealant to stretch and move with building materials without cracking or tearing, ensuring a long-lasting seal on roofs, walls, and around windows. [Strong Adhesion On Various Materials] With a high shear strength (38 MPa), it bonds powerfully to a wide range of surfaces including metal, glass, tile, stone, and aluminum. Ideal for sealing joints in curtain walls, gutters, skylights, and sunroom frames. [Smooth Professional Application] Specially formulated for a smooth, even extrusion that prevents bubbles and air holes. This creates a clean, professional finish every time, making DIY projects and repairs simpler and more effective. [Versatile For Indoor & Outdoor Use] A multi-purpose solution perfect for a wide range of applications. Use it for roofing repairs, sealing wall cracks, bonding stone, filling tile gaps, and sealing metal joints. Available in Black, White, and Transparent to blend seamlessly with any surface.