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 h. 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.
Chemical Basis / Base | Methacrylate |
Color | Green |
Diametrical Clearance (Maximum) | 0.1 mm |
Fixture Time | 2 hr. |
Fixture Time Temperature | 2 °C |
Shear Strength | 22 N/mm² |
Substrates | Metal: Steel |
Viscosity Max | 750 |
Viscosity Min | 450 |
Viscosity Unit | mPa.s (cP) Brookfield |