Applications

LOCTITE® HHD 9397BK – Structure bonding and sealing – Electronics and general industrial applications

Item Name: LOCTITE® HHD 9397BK
Manufacturer: Henkel
Technologies: Silane modified polymer
Color: Black
Cure Type: Moisture cure
Package Size: Contact to Techniq VN for details.
Shelf Life: Contact to Techniq VN for details.

1. Product Overview

LOCTITE® HHD 9397BK is a one-component, silane-modified polymer sealant designed for structural bonding and sealing applications. It cures by reacting with atmospheric moisture to form an elastomeric bond without generating cyclic silicone. The adhesive provides low modulus bonding to accommodate CTE (coefficient of thermal expansion) mismatches between substrates while preventing moisture and fluid ingress. Key features include fast curing, high adhesion strength, low shrinkage, and suitability for high aspect ratio applications.


2. Applications

  • Structural bonding and sealing

  • Low modulus bond for managing thermal expansion mismatch

  • Moisture and fluid intrusion protection in devices

  • Applied via heating cartridge guns or syringe-type melting equipment

3. Typical Properties

Property Before Curing After Curing
Components One component N/A
Appearance Black N/A
Odor Slight N/A
Solids Content (%) 100 N/A
Viscosity, Brookfield DV-II+, CP52 @ 25°C, mPa·s (cP) 14,530 N/A
Thixotropic Index (2/20 rpm) 2.8 N/A
Skin Over Time (minutes) 15 N/A
Recommended Cure Moisture cure Functional strength: 24 hours
Full cure: 7 days @ 25°C / 50% RH
Lap Shear Strength, AnAL6013 to AnAL6013 (MPa) N/A 3.66
Elongation (%) N/A 140
Shore A Hardness N/A 45

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