LOCTITE 640 is a high-temperature anaerobic adhesive that secures slip and press fit assemblies. Adds up to 3,000 psi holding power. Restores fit to worn or out-of-tolerance assemblies. Prevents surface corrosion. Works to 400°F (204°C).
High strength, methacrylate ester-based retaining compound that is slow curing; ideal for large diameter components and active metals such as brass.
LOCTITE 640 is a green, anaerobic, low viscosity, methacrylate ester-based retaining compound ideal for parts requiring a longer positioning time. Fixturing time on steel is 2 hours. Also used for active metals such as brass. This is a high-strength product with good temperature resistance. Max. diametrical clearance is 0.1 mm and service temperature is -55 to +175ºC. Fluorescence allows product presence to be monitored.