Applications

LOCTITE® ABLESTIK 2902 – Epoxy-based adhesive – Electrically and thermally conductive bonding and sealing for electronic components

  • Item Name: LOCTITE ABLESTIK 2902
  • Manufacturer: Henkel
  • Product Category: Electrically & Thermally Conductive Epoxy Adhesive
  • Technologies: Epoxy, Two-component, Solvent-free
  • Applications: Bonding, Sealing, and Repair of Electrical Modules, Printed Circuitry, Wave Guides, Flat Cables, High-Frequency Shields, Cold Solder
  • Color: Silver
  • Cure Type: Room Temperature or Heat Cure
  • Package Size: Contact Techniq VN for details.
  • Shelf Life: Contact Techniq VN for details.

1. Product Overview

LOCTITE ABLESTIK 2902 is a two-component epoxy adhesive designed for electronic bonding and sealing applications. It is electrically and thermally conductive, solvent-free, and exhibits high adhesion to various substrates. It can be cured at room temperature or with heat.

  • Technology: Epoxy
  • Appearance: Silver
  • Filler Type: Silver
  • Cure Options: Room Temperature or Heat Cure
  • Key Benefits:
    • Electrically & thermally conductive
    • High adhesion
    • Solvent-free
    • Room temperature cure

2. Applications

  • Electrical modules
  • Printed circuitry
  • Waveguides
  • Flat cables
  • High-frequency shields
  • Cold solder applications

Compatible Surfaces: Ceramics, metals, glass, plastic laminates

Operating Temperature: -60 to 110°C

Certifications:

  • Passes NASA outgassing standards
  • Complies with ISO 10993-5 Cytotoxicity requirements

3. Typical Properties

Uncured Properties

Property Value
Mixed Viscosity (Brookfield @ 25°C, 10 rpm) 287,600 mPa·s (cP)
Specific Gravity (mixed) 3.2
Pot Life 60 minutes

Curing Performance

Cure Condition Time
Room Temp (25°C) 24 hours
Heat Cure (65°C) 1-4 hours

4. Properties After Curing

Physical Properties

Property Value
Coefficient of Thermal Expansion 4.9 × 10⁻⁵ cm/cm/°C
Glass Transition Temperature (Tg) 52°C
Thermal Conductivity 2.99 W/(m-K)
Hardness (Shore D) 80

Electrical Properties

Property Value
Volume Resistivity 0.0003 – 0.001 Ω·cm (varies by cure conditions)

Shear Strength (Lap Shear – Aluminum)

Cure Condition Strength (N/mm²) Strength (psi)
110°C for 1 hour 11 1,600
150°C for 15 minutes 11 1,600
65°C for 2 hours 7 1,000
25°C for 24 hours 5 700

Outgassing Properties

Property Value
Total Mass Loss (TML) 0.64%
Collected Volatile Condensable Material (CVCM) 0.05%

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