Applications

LOCTITE® 406™ Cyanoacrylate (Ethyl cyanoacrylate)-Bonding plastics and rubbers with very fast fixturing, ideal for elastomeric materials

  • Item Name: LOCTITE® 406™
  • Manufacturer: Henkel
  • Product Category: Instant Adhesives
  • Technologies: Cyanoacrylate (Ethyl cyanoacrylate)
  • Applications: Bonding plastics and rubbers with very fast fixturing, ideal for elastomeric materials
  • Color: Transparent, colorless to straw-colored liquid
  • Cure Type: Humidity cure
  • Package Size: Contact Techniq VN for details
  • Shelf Life: Contact Techniq VN for details

1. Product Overview

LOCTITE® 430™ is a methyl cyanoacrylate adhesive designed for general-purpose bonding, particularly effective on metal substrates. It is a low-viscosity, transparent, colorless liquid that cures with humidity.

2. Applications

  • Bonding metals, rubbers, and plastics
  • Suitable for thin bond gaps (0.05 mm)
  • Used in industrial applications requiring fast fixture time

3. Typical Properties

Uncured Properties

Property Value
Specific Gravity @ 25 °C 1.1
Viscosity (Cone & Plate, 25°C) 60 – 90 mPa·s (cP)
Viscosity (Brookfield LVF, 25°C) 70 – 110 mPa·s (cP)

Cured Properties (After 24 hours @ 22°C)

Property Value
Coefficient of Thermal Expansion 100×10⁻⁶ K⁻¹
Coefficient of Thermal Conductivity 0.1 W/(m·K)
Glass Transition Temperature (Tg) 165°C
Dielectric Breakdown Strength 25 kV/mm
Volume Resistivity 10¹⁵ Ω·cm
Lap Shear Strength (Steel, grit blasted) 20 – 30 N/mm² (2,900 – 4,350 psi)
Lap Shear Strength (Aluminum) 15 – 22 N/mm² (2,175 – 3,190 psi)
Tensile Strength (Steel, grit blasted) 12 – 25 N/mm² (1,740 – 3,625 psi)

Curing Performance

  • Fixture Time (Steel): 20 – 40 sec
  • Fixture Time (Aluminum): 30 – 60 sec
  • Fixture Time (Rubbers): <10 sec
  • Curing is dependent on humidity and bond gap

Environmental Resistance

  • Heat Resistance: Maintains 50% strength up to 120°C
  • Chemical Resistance: Retains 100% strength after 1000 hours in motor oil, gasoline, ethanol, and isopropanol
  • Humidity Resistance (95% RH, 40°C): Maintains 40% strength after 1000 hours

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