Loctite 242 is a general-purpose liquid threadlocker intended for locking and sealing threaded fasteners. This material offers the user a medium strength, medium viscosity, one-component material well suited for filling gaps between threads. Loctite 242 Threadlocker is also suitable for applications on surfaces where disassembly with hand tools is required. This product protects against corrosion and rust and prevents fasteners from loosening from vibration. Loctite 242 complies to MIL-S-46163A. Loctite 242 is a blue liquid threadlocker that prevents loosening and leakage of threaded fasteners. The rate of the cure will depend on the substrate used and the temperature. This product complies with MIL-S-46163A. Typical Use: Suitable for applications such as pump or motor mounting bolts, equipment housing screws or engine rocker nuts, where disassembly with hand tools is required. Application: Threadlocking Specific Gravity @ 25°C: 1.1 One or Two Component: One Component Cure: Anaerobic Secondary Cure: Activator Full Cure: 24 hours Fluorescence: Positive under UV light Viscosity: Medium Temperature Range: -65°F to 300°F