Applications

LOCTITE® HHD 3544F

  • Item Name: LOCTITE® HHD 3544F
  • Manufacturer: Henkel
  • Product Category: Hot Melt Adhesive
  • Technologies: Polyurethane Hot Melt
  • Applications: Structural adhesive, electronic structural bonding
  • Color: Beige
  • Cure Type: Moisture cure
  • Package Size: Contact Avantek for details

1. Product Overview

  • Technology: Polyurethane Hot Melt
  • Appearance: Beige solid
  • Odor: Slight
  • Solids Content: 100%
  • Cure Mechanism: Moisture cure
  • Bio-based Content: 60%
  • Key Features:
    • Good bonding performance
    • Long open time for assembly line production
    • High handling strength instantly after bonding

2. Applications

  • Structural Adhesive – Suitable for bonding applications in electronics and general structural bonding.
  • Ideal for automatic or manual assembly line production.

3. Typical Properties

Uncured Material
Property Value
Viscosity @ 110°C (mPa·s) ~5,000
Density @ 25°C (g/cm³) 1.1
Curing Performance
Property Value
Open Time @ 25°C (min) 4
Preheating Schedule @ 110°C 20-30 min
Application Temperature (°C) 90-120
Cured Material
Property Value
Tensile Modulus (MPa) 190
Tensile Strength (MPa) 11
Elongation at Break (%) 1,070
Cross Tensile Strength (PC/SUS, 24h, MPa) >3

4. Storage & Handling

  • Storage Temperature: 18 to 26°C
  • Minimum Transport Temperature: 10°C
  • Keep containers sealed and store in a dry environment.
  • Do not return used material to the original container.

5. Application Guidelines

  • Ensure bonding surfaces are clean, dry, and free of grease.
  • Substrate temperature should not fall below 20°C during application.
  • Apply using heating cartridge guns or syringe-type melting equipment.
  • For long rest periods, reduce the melting and application temperature to avoid viscosity increase.

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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