Applications

LOCTITE® HHD 8150R™

  • Item Name: LOCTITE® HHD 8150R™
  • Manufacturer: Henkel
  • Product category: Bonding Adhesive
  • Technologies: Acrylic methacrylate two-component system
  • Applications: Designed for laptop cover and handheld device bonding on substrates such as Magnesium Aluminum alloys, Anodized Aluminum, and PCABS blends.
  • Color: Component A: Yellow; Component B: Blue; Mixed: Green
  • Cure type: Room temperature cure
  • Package size: Contact to Avantek for details
  • Shelf life: Contact to Avantek for details

1. Product Overview

LOCTITE® HHD 8150R™ is a two-component, halogen-free, and phthalate-free methacrylate adhesive designed for bonding laptop covers and handheld devices. It provides fast fixture times, excellent adhesion, and strong resistance to damp heat. It is specifically formulated for Magnesium Aluminum alloys, Anodized Aluminum, and PC/ABS blends.

Key Features:

  • Technology: Acrylic
  • Chemical Type: Methacrylate
  • Appearance:
    • Part A (Resin): Yellow
    • Part B (Hardener): Blue
    • Mixed: Green
  • Cure: Room temperature cure
  • Mix Ratio (by volume): 10:1 (Part A: Part B)
  • Application: Bonding

2. Applications

LOCTITE® HHD 8150R™ is primarily used for:

  • Bonding laptop covers and handheld devices
  • Bonding Magnesium Aluminum alloys
  • Bonding Anodized Aluminum and PC/ABS blends
  • Applications requiring high adhesion and damp heat resistance

3. Typical Properties

Uncured Properties

Property Part A Part B Mixed
Specific Gravity @ 25°C 0.98 1.2 0.99
Viscosity (mPa·s) 35,000 – 65,000 (Shear Rate: 20 s⁻¹) 5,000 – 20,000 (Shear Rate: 50 s⁻¹)
Flash Point See SDS See SDS See SDS

Curing Properties

Property Value
Working Time on Aluminum 7 minutes
Working Time on Steel 8 minutes
Working Time on HDPE 8 minutes
Fixture Time (ISO 4587) 5 – 10 minutes (Anodized Aluminum & Grit Blasted Mild Steel)
Peak Exotherm Temperature 139°C (at 10g mass, reached in 11 min)

Cured Properties (After 72 hours @ 22°C)

Property Value
Glass Transition Temperature (Tg) 55°C
Coefficient of Thermal Expansion (Below Tg) 105 × 10⁻⁶ K⁻¹
Shore Hardness (D) 73
Linear Shrinkage 5%
Volume Shrinkage 13%
Tensile Strength 16 N/mm² (2,300 psi)
Tensile Modulus 840 N/mm² (122,000 psi)

Adhesive Performance (Lap Shear Strength, ISO 4587, Cured @ 24h & 72h @ 22°C)

Substrate Strength (N/mm²) Strength (psi)
Anodized Aluminum ≥19.3 ≥2,800
Grit Blasted Mild Steel 19 2,780
Stainless Steel 21 3,020
Galvanized Steel 2.2 318
Aluminum 18 2,550
FRP 6 900
PC/ABS >5 >690
Magnesium >11 >1,540
Glass 11 1,550
Acrylic 16 2,320
Phenolic 11 1,670
ABS 22 3,160
PVC 5 690
Polycarbonate 18 2,680
Ferrite Magnet to Steel 15 2,240

Environmental Resistance (Lap Shear Strength, ISO 4587, After 72h @ 22°C)

  • Hot Strength: Maintains high strength up to 100°C.
  • Heat Aging: Retains over 50% of initial strength even after 2,000 hours at 175°C.
  • Chemical Resistance (after 500h & 1000h exposure @ 22°C):
    • Water (87°C): 45% strength retention after 500h, 35% after 1000h
    • Salt Fog (35°C): 65% after 500h, 55% after 1000h
    • 95% RH (40°C): 85% after 500h, 105% after 1000h
    • 95% RH (65°C): 95% after 500h, 85% after 1000h

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