LOCTITER 222 is a one-part, purple, low-strength, thixotropic, anaerobic acrylic threadlocking adhesive designed for small-diameter fasteners requiring frequent disassembly. It cures between close-fitting metal surfaces in the absence of air.
| Property (Uncured / Cure / Cured) | Value / Description |
|---|---|
| Technology | Acrylic |
| Chemical Type | Dimethacrylate ester |
| Appearance (uncured) | Purple liquid |
| Fluorescence | Positive under UV light |
| Components | One component - no mixing |
| Viscosity | Low, thixotropic |
| Cure Type | Anaerobic |
| Secondary Cure | Activator |
| Application | Threadlocking |
| Strength | Low |
| Specific Gravity @ 25°C | 1.05 |
| Viscosity, Brookfield, 25°C, spindle 3, 2.5 rpm | ≥3,500 mPa·s (cP) |
| Viscosity, Brookfield, 25°C, spindle 3, 20 rpm | 900 to 1,500 mPa·s (cP) |
| Viscosity, EN 12092-MV, 25°C, after 180 s, shear rate 277 s⁻¹ | 135 mPa·s (cP) |
| Coefficient of Thermal Expansion | 80 × 10⁻⁶ K⁻¹ (ISO 11359-2) |
| Thermal Conductivity | 0.1 W/(m·K) (ISO 8302) |
| Specific Heat | 0.3 kJ/(kg·K) |
| Breakaway Torque, ISO 10964, M10 steel nuts/bolts, 24h @22°C | 6 N·m (50 lb.in) |
| Prevail Torque, ISO 10964, M10 steel nuts/bolts, 24h @22°C | 4 N·m (35 lb.in) |
| Breakloose Torque, ISO 10964, pre-torqued 5 N·m, 24h @22°C | 14 N·m (120 lb.in) |
| Max. Prevail Torque, ISO 10964, pre-torqued 5 N·m, 24h @22°C | 14 N·m (120 lb.in) |
| Compressive Shear Strength, ISO 10123, steel pins/collars | ≥2.5 N/mm² (≥360 psi) |
The product is used to lock and seal threaded fasteners against loosening and leakage from shock and vibration. It is particularly suitable for set screws, small diameter or long engagement length fasteners, and can be disassembled with standard hand tools without shearing the screw.
LOCTITER 222 is thixotropic to reduce migration after application, fluoresces under UV light for inspection, has a typical viscosity (20 rpm) of 900–1,500 mPa·s and specific gravity 1.05 g/cm³, shows good resistance to motor oil, petrol, brake fluid, water/glycol, and can be accelerated with activators.
fasteners ≤6.35 mm (1/4") diameter; adjustment screws, countersunk screws, set screws; small screws in aluminum or brass; fasteners on vibrating assemblies such as pumps, gear boxes, presses; carburetors, relay locks, headlamps, throttle body assemblies, choke assemblies, fuel injection set screws, body panel mounting fasteners, etc.
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