Applications

LOCTITE HHD 7529 – Water-Based Polyurethane Adhesive – Structural and Electronic Device Assembly

Item Name: LOCTITE HHD 7529
Manufacturer: Henkel
Technologies: Water-based polyurethane
Color: White
Cure Type: Heat dry followed by room temperature cure
Package Size: 20 kg plastic pail
Shelf Life: 180 days

1. Product Overview

LOCTITE® HHD 7529 is a water-based polyurethane adhesive formulated for structural bonding and electronic device assembly. It appears as a white liquid and cures via a heat-dry process followed by room temperature curing. The adhesive performs best when used with LOCTITE® HHD 7520H or LOCTITE® HHD 7520HL hardener. It can be applied by spraying, dispensing, or brushing, making it versatile for a wide range of assembly applications.


2. Applications

  • Structural bonding and electronic assembly

  • Bonding fabric to consumer electronic parts and devices

  • Suitable for spray, brush, or dispense application methods

  • Works effectively with compatible hardeners for enhanced performance

3. Typical Properties

Unmixed

Property Value
Technology Water-based polyurethane
Appearance White liquid
Viscosity @ 25 °C, Brookfield RV, mPa·s 5,270
Solid Content (%) 51.2
pH 6.76
Shelf Life @ 5–36 °C (days) 180

Mixed with Hardener (LOCTITE® HHD 7520H)

Property Value
Recommended Mix Ratio (Resin:Hardener) 100:5 to 100:10 by weight
Cure Schedule Dry 5–10 min @ 40–60 °C → Heat press 0.2–0.5 MPa @ 70–105 °C for 20–60 sec
Recommended Evaluation 1–3 days post-cure
Recommended Dry Thickness (spray) 40–100 µm
Pressing Pressure 0.2–0.5 MPa

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