• Item Name: LOCTITE® HHD 7520H
• Manufacturer: Henkel
• Technologies: Polyisocyanate
• Color: Colorless to light yellow
• Cure Type: Room temperature and heat cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 6 months
LOCTITE® HHD 7520H is a polyisocyanate-based curing agent supplied as a colorless to light yellow liquid. It is designed for use with LOCTITE® HHD 7520 or HHD 7529 adhesives, where it enhances bonding strength and thermal resistance. The curing process can occur at room temperature or with applied heat. The product must be handled carefully as it is sensitive to freezing and frost.
Structural bonding in advanced assemblies.
Device assembly requiring reinforced adhesive strength.
Fabric bonding where both flexibility and heat resistance are essential.
Used as a curing agent in two-part adhesive systems for high-performance bonding.
| Property | Still Not Mixed (Uncured) | After Mixed | After Cured |
|---|---|---|---|
| Appearance | Colorless to light yellow liquid | – | – |
| Viscosity @ 25 °C (Cone & Plate, 20 1/s) | 1,250 mPa·s | – | – |
| Density | 1.15 g/cc | – | – |
| Shelf Life @ 25 °C | 180 days | – | – |
| Cure Method | Room temperature / heat | – | Refer to TDS of HHD 7520 / 7529 |
| Sensitivity | Freezing and frost sensitive | – | – |
| Physical Properties | – | – | Refer to TDS of HHD 7520 / 7529 |
The product is a supportive curing agent that enables adhesives to reach their full mechanical and thermal performance. Its stability, controlled viscosity, and compatibility with companion adhesives make it a reliable solution for demanding structural and industrial bonding tasks.
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