• Item Name: LOCTITE HHD 3565BK
• Manufacturer: Henkel
• Technologies: Polyurethane Hot Melt
• Color: Black Solid
• Cure Type: Moisture
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
LOCTITE HHD 3565BK is a black, one-part polyurethane hot melt adhesive that cures with moisture. It features a long open time, fast fixture, and high bond strength. Designed for both manual and automated assembly lines, it is reactive, pressure-sensitive, and suitable for high-speed production environments. The adhesive exhibits excellent handling strength immediately after bonding and reaches full cure within 1–5 days depending on humidity and substrate conditions.
Device assembly
Structural bonding of substrates
Suitable for use with heating cartridge guns or syringe-type melting equipment
Substrate pretreatment recommendations: Clean, dry, and oil-free surfaces; preheating may be applied; avoid temperatures below 20°C during application.
| Property | Value |
|---|---|
| Uncured Material | |
| Technology | Polyurethane Hot Melt |
| Appearance | Black solid |
| Components | One-part, no mixing required |
| Viscosity @ 110°C, mPa·s | 7,500 |
| Density @ 25°C, g/cm³ | 1.1 |
| Solids Content, % | 100 |
| Flash Point | See SDS |
| Curing Performance | |
| Open Time @ 23°C, min | ~2 |
| Preheating Schedule | 20–30 min @ 100°C |
| Application Temperature, °C | 90–110 |
| Fixture Time, min | ~1 |
| Cure Method | Moisture |
| Full Cure Time | 1–5 days (depending on humidity and substrate conditions) |
LOCTITE HHD 3565BK cures exclusively by moisture and exhibits immediate handling strength. The cure rate depends on environmental humidity, substrate moisture, permeability, and adhesive layer thickness. Proper storage (5–25°C) in unopened containers is recommended to maintain performance.
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