LOCTITE® 661
Features and Benefits
High strength, low viscosity, anaerobic, methacrylate retaining compound that is also cured by UV light to prevent migration from the joint.
LOCTITE® 661 is an amber, anaerobic, low viscosity, high strength methacrylate retaining compound that also cures in the presence of UV light. It’s therefore ideal for applications where any migration of the adhesive from the joint must be prevented. Fixture time on steel is 4 min and maximum diametrical clearance is 0.15 mm. Service temperature is -55 to 175ºC.
- 1-part product, requires no mixing
- Dual-cure - anaerobic and UV light
- High strength
- Low viscosity, small gap filling
Documents and Downloads
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Technical Information
| Chemical basis / base | Methacrylate |
| Colour | Amber |
| Diametrical clearance | <0.15 mm |
| Fixture time | 4.0 min. |
| Recommended for use with | Metal: steel |
| Shear strength | 15.0 N/mm² |
| Viscosity, Brookfield - RVT, @ 25.0 °C Spindle 2, speed 20 rpm | 400.0 - 600.0 mPa·s (cP) |
LOCTITE® 661
High strength, low viscosity, anaerobic, methacrylate retaining compound that is also cured by UV light to prevent migration from the joint.