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LOCTITE® 222 – Adhesive – Threadlocking

  • Item Name: LOCTITE® 222
  • Manufacturer: Henkel
  • Technologies: Acrylic, Dimethacrylate ester
  • Color: Purple
  • Cure Type: Anaerobic, Secondary Cure with Activator
  • Package Size: Contact to Techniq VN for details.
  • Shelf Life: Contact to Techniq VN for details.

1. Product Overview

  • Technology: Acrylic
  • Chemical Type: Dimethacrylate ester
  • Appearance (Uncured): Purple liquid
  • Fluorescence: Positive under UV light
  • Viscosity: Low, thixotropic
  • Cure Type: Anaerobic with secondary activator cure
  • Application: Threadlocking
  • Strength: Low
  • Description: Designed for locking and sealing threaded fasteners requiring easy disassembly with standard hand tools. Prevents loosening and leakage due to shock and vibration. Suitable for set screws, small diameter, and long engagement fasteners.

2. Applications

  • Ideal for adjustment of set screws and small diameter fasteners
  • Used where disassembly without shearing is required
  • Suitable for use on metal fasteners to prevent loosening due to vibrations
  • Works effectively with activators for improved cure speed

3. Typical Properties

Uncured Material

Property Value
Specific Gravity @ 25°C 1.05
Flash Point Refer to SDS
Viscosity, Brookfield RVT (mPa·s)
– Spindle 3, speed 2.5 rpm ≥3,500
– Spindle 3, speed 20 rpm 900 – 1,500
Shear Rate 277 s⁻¹ 135

Cured Material (After 24h @ 22°C)

Property Value
Breakaway Torque (ISO 10964, M10 steel nuts & bolts) 6 N·m (50 lb.in)
Prevail Torque (ISO 10964, M10 steel nuts & bolts) 4 N·m (35 lb.in)
Breakloose Torque (ISO 10964, Pre-torqued to 5 N·m) 14 N·m (120 lb.in)
Compressive Shear Strength (ISO 10123, Steel pins & collars) ≥2.5 N/mm² (≥360 psi)

Thermal Properties

Property Value
Coefficient of Thermal Expansion (ISO 11359-2) 80×10⁻⁶ K⁻¹
Thermal Conductivity (ISO 8302) 0.1 W/(m·K)
Specific Heat 0.3 kJ/(kg·K)

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