• Item Name: LOCTITE® HHD8008™
• Manufacturer: Henkel
• Technologies: Acrylic (Methacrylate)
• Color: Resin Yellow, Hardener Blue, Mixture Green
• Cure Type: Room temperature cure (two-component, 10:1 mix ratio)
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
LOCTITE® HHD8008™ is a two-component methacrylate adhesive formulated for structural bonding of mobile phones, tablets, and other small devices. It cures at room temperature, mixing Part A (yellow resin) and Part B (blue hardener) into a green adhesive. The system is halogen-free, REACH-compliant, and engineered to provide fast fixture times even at low temperatures. It offers excellent adhesion and damp-heat resistance on magnesium-aluminum alloys, anodized aluminum, and PC/ABS blends, ensuring durable bonding in compact electronic assemblies.
Structural bonding in mobile phones and tablets
Small electronic device assembly
Joining of magnesium-aluminum alloys, anodized aluminum, stainless steel, and engineering plastics
Situations requiring rapid fixture and resistance to damp heat environments
| Property | Still Not Mixed (Uncured) | After Mixed | After Cured (72 h @ 22 °C) |
|---|---|---|---|
| Appearance | Part A: Yellow Part B: Blue |
Green | Solid polymer |
| Mix ratio (vol.) | – | 10:1 (A:B) | – |
| Specific gravity | A: 0.98 B: 1.2 |
1.0 | – |
| Viscosity (25 °C) | A: 57,350 mPa·s B: 16,160 mPa·s |
– | – |
| Working time | – | Al: 240 s Steel: 240 s HDPE: 210 s |
– |
| Fixture time | – | 180–300 s (substrate dependent) | – |
| Peak exotherm | – | 135 °C @ 7 min (10 g) | – |
| Tg | – | – | 54 °C |
| Thermal expansion | – | – | 110 ×10⁻⁶ K⁻¹ (below Tg) |
| Hardness | – | – | Shore D 70 |
| Shrinkage | – | – | Linear 5%, Vol. 15% |
| Tensile strength | – | – | 18 N/mm² (2,570 psi) |
| Tensile modulus | – | – | 840 N/mm² (122,000 psi) |
| Lap shear strength | – | – | Al 12–13, Steel 12–13, PC/ABS 6.2 N/mm² |
| Impact strength | – | – | 4 J (RT), 3 J (@ -40 °C) |
| Peel strength (T-peel) | – | – | Steel 1.7 N/mm, Al 2.1 N/mm |
| Block shear | – | – | Glass 7.6, PVC 4.1, Acrylic 3.7, Phenolic 6, Mg 11 N/mm² |
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