A general-purpose black silicone sealant is a flexible, acetoxy-cure silicone sealant supplied in a standard 300ml cartridge for application via a caulking gun. It reacts with atmospheric moisture to cure into a durable, permanently elastic rubber bead designed for deep contrast or dark substrate sealing. Exhibiting exceptional UV stability, weather resistance, and high bond strength to materials like glass, dark anodized aluminum, ceramics, plastics, and timber, it is ideal for perimeter expansion joints, roofing details, automotive/gasket repairs, dark window frames, and exterior weatherproofing applications.