Applications

LOCTITE® 416™ – General-Purpose Cyanoacrylate Adhesive – Bonding plastics, rubbers, metals, including difficult-to-bond plastics with primer use

  • Item Name: LOCTITE® 416™
  • Manufacturer: Henkel
  • Product Category: Instant Adhesives
  • Technologies: Cyanoacrylate
  • Applications: Bonding plastics, rubbers, and metals
  • Color: Transparent clear liquid
  • Cure Type: Humidity cure
  • Package Size: Contact Techniq VN for details
  • Shelf Life: Contact Techniq VN for details

1. Product Overview

LOCTITE® 416™ is a high-viscosity, general-purpose cyanoacrylate instant adhesive designed for bonding plastics, rubbers, and metals. It cures rapidly with moisture and meets military specifications Mil-A-46050C and Commercial Item Description A-A-3097.

2. Applications

  • Bonds plastics, rubbers, and metals
  • Suitable for high-strength bonding
  • Used in industrial and manufacturing applications

3. Typical Properties

Uncured Material

Property Value
Chemical Type Ethyl Cyanoacrylate
Appearance Transparent clear liquid
Specific Gravity @ 25°C 1.05
Viscosity (mPa·s) 900 – 1,500 (Cone & Plate, 25°C)
Flash Point See SDS

Curing Performance

Substrate Fixture Time (seconds)
Mild Steel 20 – 50
Aluminum 10 – 30
ABS 15 – 40
PVC 20 – 50
Nitrile Rubber <5
Polycarbonate 30 – 70

Cure time is influenced by bond gap, humidity, and use of activators.

Cured Material Properties

Property Value
Thermal Expansion 100 × 10⁻⁶ K⁻¹
Thermal Conductivity 0.1 W/(m·K)
Softening Point 165°C
Volume Resistivity 2×10¹⁵ to 10×10¹⁵ Ω·cm
Dielectric Strength 25 kV/mm

Adhesive Performance (After 24 Hours @ 22°C)

Substrate Lap Shear Strength (N/mm²)
Steel (grit blasted) 18 – 26
Aluminum (etched) 12 – 19
ABS 6 – 20
PVC 6 – 20
Polycarbonate 5 – 20

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