LOCTITE® 246™ is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. Particularly suitable for heavy duty applications such as bolts used in transmissions, construction equipment or railroad assemblies where resistance to heavy shock, vibration and stress level is required along with exposure to elevated temperatures. The thixotropic nature of LOCTITE® 246™ reduces the migration of liquid product after application to the substrate.
APPLICATION
Threadlocking
|
Technology |
Acrylic |
|
Chemical Type |
Dimethacrylate ester |
|
Appearance (uncured) |
Blue opaque liquidLMS |
|
Fluorescence |
Positive under UV lightLMS |
|
Components |
One component – requires no mixing |
|
Viscosity |
Medium, thixotropic |
|
Cure |
Anaerobic |
|
Secondary Cure |
Activator |
|
Application |
Threadlocking |
|
Strength |
Medium |
TYPICAL PROPERTIES OF UNCURED MATERIAL
| Specific Gravity @ 25 °C | 1.15 |
|
Flash Point – See SDS |
|
|
Viscosity, Brookfield – RVF, 25 °C, mPa·s (cP): Spindle 3, speed 20 rpm, |
2,000 to 4,000LMS |
TYPICAL PERFORMANCE OF CURED MATERIAL
After 24 hours @ 22 °C
|
Breakaway Torque, ISO 10964: 3/8 x 16 steel nuts (grade 20 and bolts (grade 5)
3/8 x 16 zinc nuts and bolts |
N·m (lb.in)
N·m (lb.in) |
11.3 to 22.6LMS (100 to 200)
5.7 to 22.6LMS (50 to 200) |
|
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m: M10 black oxide steel nuts and bolts |
N·m (lb.in.) |
15 to 24 (130 to 210)
|
|
Max. Prevail Torque, ISO 10964, Pre-torqued to 5 N·m: M10 black oxide steel nuts and bolts |
N·m (lb.in.) |
4 to 9 (35 to 80) |
|
Lubricity, K-Factor: 3/8 x 16 phosphate & oil bolts and |
0.17 |
After 24 hours @ 22 °C followed by 72 hours @ 204 °C, tested @ 22 °C
|
Breakaway Torque, ISO 10964: 3/8 x 16 steel nuts (grade 2) and bolts (grade 5) |
N·m (lb.in.) |
≥5.7LMS (50) |
|
Prevail Torque, ISO 10964: 3/8 x 16 steel nuts (grade 2) and bolts (grade 5) |
N·m (lb.in.) |
≥2.0LMS (18) |
