The Unbranded 64804551 Silicone Sealant K166 is an 80ml tube of high-quality black acetoxy silicone, designed for robust sealing and bonding applications. This versatile sealant provides exceptional temperature resistance, performing reliably from -60°C up to +250°C, with short-term peaks of +300°C. Its quick skin formation time of 10-20 minutes and curing speed of 2-3 mm per 24 hours make it efficient for various uses, including sealing engine components, gearboxes, differentials, pumps, and housings. With a Shore A hardness of 25, 350% elongation at break, and 1.5 MPa tensile strength, it ensures a durable, flexible, and long-lasting seal.