Henkel Loctite 640 Retaining Compound is a low viscosity, high strength acrylic adhesive designed for bonding cylindrical fitting parts. It prevents loosening and leakage from shock and vibration. This product complies to MIL-R-46082. 250 mL Bottle.
| Typical Use: | Typical applications include retaining keys and splines, eliminating backlash in worn assemblies, retaining bearings in place - preventing spin out. | 
| Chemical Composition: | Acrylic | 
| Color: | Green | 
| Components: | 1 part | 
| Cure System: | Anaerobic | 
| Cure Time: | Up to 48h depending on the substrate used, the bondline gap, and the temperature. | 
| Flash Point: | >93.3 °C | 
| Shear Strength: | >= 2,175 psi | 
| Specific Gravity: | 1.2 @ 25 °C | 
| Thermal Conductivity: | 0.1 W/mK | 
| Viscosity: | 450 to 750 |