LOCTITE® 649™ is a one-component, low viscosity, anaerobic retaining compound that cures when confined in the absence of air between close fitting metal surfaces. It is a green urethane methacrylate liquid that fluoresces under UV light. Typical applications include bonding cylindrical fitting parts, particularly where low viscosity is required. Where cure speed is too slow or gaps are large, secondary cure is achieved with Activator 7471™ or 7649™.
Typical Properties
- Specific gravity (25 °C) 1.12; viscosity (Brookfield RVT, spindle 2, 20 rpm) 550–950 mPa·s
- After 24 hours breakaway torque 25–45 N·m; prevail torque 30–60 N·m
- Pre-torqued to 5 N·m: breakloose torque 30–55 N·m; max prevail torque 38–60 N·m
- Compressive shear strength on steel pins and collars after 72 hours at least 15 N/mm² (ISO 10123)
Storage
- Store at 8–21 °C in a dry location in unopened containers
| Technical Data | |
|---|---|
| Viscosity 25°C mm2/s | 550 - 950 |
| Chemical Composition | Urethane methacrylate |
| Storing Temperature | 8 - 28 °C |
| Application | Part assembly |
| Curing Time | 10–30 min |
| Applicable Surfaces | Metal: steel |
| Strength | High |
| Specific Gravity | 1,12 |
| General | |
| Packing | 250 ML |
| Color | Green |