Applications

LOCTITE HHD 7520 – Water-Based Polyurethane Adhesive – Fabric Assembly in Consumer Electronic Devices

Item Name: LOCTITE HHD 7520
Manufacturer: Henkel
Technologies: Water-based polyurethane
Color: White
Cure Type: Heat cure followed by room temperature cure
Package Size: 20 kg Metal Pail
Shelf Life: 180 days

1. Product Overview

LOCTITE HHD 7520 is a water-based polyurethane adhesive designed for the assembly of fabrics to consumer electronic parts and devices. It appears as a white liquid with 48% solids content and a pH of 7.5. The adhesive requires a heat cure followed by room temperature curing and achieves optimal performance when used with LOCTITE HHD 7520H hardener. It can be applied by spraying, dispensing, or brushing.


2. Applications

  • Device assembly in consumer electronics

  • Bonding fabrics to electronic components

  • Suitable for spray, brush, or dispense application methods

3. Typical Properties

Unmixed

Property Value
Technology Water-based polyurethane
Appearance White liquid
Solids Content (%) 48
pH 7.5
Viscosity @ 25 °C, 20 s⁻¹ (mPa·s) 4,500
Pot Life @ 25 °C, 50% RH (hours) 4
Storage Life @ 15–25 °C (days) 180
Storage Life @ 5–35 °C (days) 180
Flash Point See SDS

Mixed with LOCTITE HHD 7520H Hardener

Property Value
Recommended Mix Ratio (Resin:Hardener) 100:5 to 100:10 by weight
Cure Schedule Dry 5 min @ 40 °C → Heat press 0.2–0.5 MPa @ 90–115 °C for 20–60 sec
Recommended Evaluation After 24 hours post-cure

BERGQUIST microTIM mTIM 1028 Thermal Interface Coating High performance thermal management solution for nickel finished heat sinks, optical transceivers, and data center liquid cooling systems

BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

RELATED PRODUCT

Contact Technical Support

Leave your information or connect via Hotline, and our expert team will reach out immediately to provide professional consultation and customized solutions.

(+84) 889 901 929

Email: info@techniq.vn

Our Technical Support Team is on hand from 8:30 AM to 5:30 PM (GMT+7).

For requests outside these hours, please submit your request form and we will respond at the earliest opportunity.