Applications

LOCTITE® 569™ – Adhesive – Thread Sealing for Metal Pipes and Fittings

Item Name: LOCTITE® 569™
Manufacturer: Henkel
Technologies: Acrylic
Color: Brown liquid
Cure Type: Anaerobic with secondary cure (Activator)
Package Size: Contact to Techniq VN for details.
Shelf Life: Contact to Techniq VN for details

1. Product Overview

LOCTITE® 569™ is a low-strength, anaerobic acrylic-based thread sealing adhesive designed for locking and sealing metal pipes and fittings. It cures in the absence of air between close-fitting metal surfaces, preventing loosening and leakage due to shock and vibration.

  • Technology: Acrylic
  • Chemical Type: Methacrylate ester
  • Appearance: Brown liquid
  • Fluorescence: Negative
  • Curing Mechanism: Anaerobic, secondary cure with activator
  • Viscosity: Low
  • Approvals: Australian Gas Association Certificate 3375, Class III (2000 kPa, -10 to 150°C)

2. Applications

  • Locking and sealing metal pipes and fittings
  • Prevents leakage and loosening caused by vibration and shock
  • Suitable for applications requiring a low-strength seal

3. Typical Properties

Uncured Properties
Property Value
Specific Gravity @ 25°C 1.05
Viscosity (mPa·s) 300 – 500
Flash Point See SDS
Cured Properties
Property Value
Coefficient of Thermal Expansion (K⁻¹) 0.1
Thermal Conductivity (W/m·K) 0.1
Specific Heat (kJ/kg·K) 0.3
Adhesive Performance
Test Condition Breakaway Torque (N·m) Prevail Torque (N·m)
24 hrs @ 22°C ≥2.8 (≥24 lb.in.) ≥1.1 (≥9 lb.in.)
1 hr @ 22°C ≥1.1 (≥9 lb.in.) ≥0.6 (≥5 lb.in.)
Environmental Resistance (24 hrs @ 22°C)
Environment (87°C) Strength Retention (%)
Motor Oil (MIL-L-46152) 100%
Unleaded Gasoline 100%
Phosphate Ester 100%
Distilled Water 100%
Transmission Fluid 100%
Brake Fluid 78%

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