• Item Name: LOCTITE HHD 3610
• Manufacturer: Henkel
• Technologies: Polyurethane Hot Melt
• Color: 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 3610 is an amber, slightly odorous, one-part reactive polyurethane hot melt adhesive that cures via solidification and moisture. It is formulated for robotic jetting and automatic assembly lines, offering high initial bond strength immediately after solidification. The secondary moisture cure provides excellent elongation and structural durability. Once fully cured, the adhesive will not remelt.
Device assembly
Structural bonding
Product benefits:
Jettable PUR
High impact resistance
High bond strength
Substrate pretreatment recommendations: Clean, dry, and grease-free surfaces; substrate temperature >20°C; preheating may be applied.
Application methods: Heating cartridge guns or syringe-type melting equipment; reduce temperature for longer rest periods to prevent viscosity increase.
| Property | Value |
|---|---|
| Uncured Material | |
| Technology | Polyurethane Hot Melt |
| Chemistry | Reactive Polyurethane |
| Appearance | Amber solid |
| Odor | Slight |
| Components | One-part, no mixing required |
| Solids Content, % | 100 |
| Viscosity @ 110°C, mPa·s | 6,200 |
| Curing Performance | |
| Open Time @ 25°C, min | ≥2 |
| Preheating Schedule @ 110°C, min | 20–30 |
| Application Temperature, °C | 100–120 |
| Cure Method | Solidification + Moisture |
| Full Cure Time | 1–7 days (depending on humidity and substrate conditions) |
| Cured Material | |
| Light Transmittance, 0.2 mm @ 550 nm, % | 94.12 |
| Light Transmittance, 0.2 mm @ 940 nm, % | 96 |
| Cross Tensile Strength, N/mm² | PC/20%GF to Ink Glass: 6.0 PBT/40%GF to Ink Glass: 5.7 |
| Lap Shear Strength, N/mm² | PC/20%GF to PC/20%GF: 12.1 PBT/40%GF to PBT/40%GF: 7.7 |
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