• Item Name: LOCTITE® HHD 3605
• Manufacturer: Henkel
• Technologies: Polyurethane Hot Melt
• Color: Colorless to amber solid
• Cure Type: Solidification and Moisture cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
LOCTITE® HHD 3605 is a colorless to amber, one-part reactive polyurethane hot melt adhesive that cures via solidification and moisture. It is pressure sensitive, providing instant high initial strength and fast set speed. It offers excellent impact resistance and good bonding performance, suitable for automatic or manual assembly line processing.
Device assembly
Structural bonding
Product benefits:
Instant high initial strength
Excellent impact resistance
Good basic bonding performance
Suitable open time for automatic/manual assembly
Substrate pretreatment recommendations: Clean, dry, grease-free surfaces; substrate temperature >20°C; preheating may be applied.
Application methods: Heating cartridge guns or syringe-type melting equipment; lower temperature recommended during longer rest periods to prevent viscosity increase.
| Property | Value |
|---|---|
| Uncured Material | |
| Technology | Polyurethane Hot Melt |
| Appearance | Colorless to amber solid |
| Solids Content, % | 100 |
| Components | One-part, no mixing required |
| Density @ 25°C, g/cm³ | 1.1 ± 0.05 |
| Viscosity @ 110°C, mPa·s | 4,250 |
| Flash Point | See SDS |
| Curing Performance | |
| Preheating Schedule @ 100°C, min | 20–30 |
| Application Temperature, °C | 100–110 |
| Cure Method | Solidification + Moisture |
| Full Cure Time | 1–5 days (depending on humidity and substrate conditions) |
| Cured Material | |
| Elongation, % | 836 |
| Modulus, N/mm² | 63 (psi 9,140) |
| Tensile Strength, PAGF/Ink glass, N/mm² | ≥4 (psi 580) |
| Cross Tensile Strength, PAGF/Ink glass, MPa | 0–7h progression (graph-based) |
LOCTITE HHD 3605 achieves high handling strength immediately after bonding. Optimal storage conditions are indicated on the product label. Material removed from containers should not be returned to avoid contamination.
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