LOCTITE SI 5980 (part number 2327036) is a high-performance, black silicone gasket maker and flange sealant, formulated for excellent adhesion to various substrates including metals and plastics. This low-odour, non-corrosive product offers superior flexibility and resistance to oils, coolants, and other fluids, making it suitable for sealing flexible flanges in demanding applications. It cures with moisture to form a durable, elastic seal, with a fixture time of 25 minutes. It operates effectively in temperatures ranging from -50°C to +250°C, with intermittent exposure up to +280°C. Supplied in a 100ml tube, it is commonly used in automotive and industrial machinery for sealing components like oil pans, valve covers, and transmission pans.