Applications

LOCTITE® 4204™

  • Item Name: LOCTITE® 4204™
  • Manufacturer: Henkel
  • Product Category: Instant Adhesives
  • Technologies: Cyanoacrylate (Ethyl cyanoacrylate)
  • Applications: Bonding rubbers, plastics, and metals; suitable for applications requiring heat resistance, flexibility, and impact resistance.
  • Color: Colorless to slightly pale yellow (uncured)
  • Cure Type: Humidity-cured
  • Package Size: Contact Avantek for details.
  • Shelf Life: Contact Avantek for details.

1. Product Overview

LOCTITE® 4204™ is a general-purpose, high-viscosity cyanoacrylate adhesive designed for bonding rubber, plastic, and metal. It is elastomer-toughened, providing enhanced flexibility, impact resistance, and improved resistance to heat and humidity.

2. Applications

  • Suitable for bonding rubbers, plastics, and metals
  • Ideal for applications requiring heat resistance and durability
  • Used in industrial assembly, electronics, and general bonding applications

3. Typical Properties

Property Value
Uncured Properties
Chemical Type Ethyl cyanoacrylate
Appearance Colorless to pale yellow liquid
Specific Gravity (@ 25°C) 1.1
Viscosity (Brookfield RVT, 25°C, mPa·s) 2,000 – 6,000
Cure Mechanism Humidity
Curing Performance
Fixture Time (Steel) 120 – 150 sec
Fixture Time (Aluminum) 5 – 10 sec
Fixture Time (ABS) 30 – 45 sec
Full Cure Time 24 hours
Adhesive Properties (Cured @ 22°C, 24h)
Lap Shear Strength (Steel) 17.2 – 19.3 N/mm² (2,490 – 2,800 psi)
Lap Shear Strength (Aluminum) 14.3 – 15.9 N/mm² (2,070 – 2,300 psi)
Block Shear Strength (ABS) 18 – 20 N/mm² (2,610 – 2,900 psi)
Peel Strength (Steel, 180°) 2.3 N/mm (13 lb/in)
Environmental Resistance
Heat Resistance (After 24h @ 121°C) ≥ 5.6 N/mm² (810 psi)
Chemical Resistance (Motor oil, gasoline, ethanol, isopropanol) Retains 90-115% strength

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