Henkel LOCTITE-AA-326 (50-ml-Btl)

Additional Product Information

Overview

LOCTITE AA 326 is a high-performance, one-component acrylic adhesive designed for rapid bonding in aviation and MRO applications. Trusted for its fast fixturing and strong adhesion, it is ideal for critical assemblies where reliability and speed are paramount. Teams rely on it to bond metals, ferrites, and other substrates efficiently while ensuring long-term durability in operational environments.

Key Technical Specs for LOCTITE AA 326

• Type: Acrylic, polyurethane methacrylate
• Appearance: Transparent, yellow to light amber liquid
• Viscosity/Consistency: High viscosity, 14,000–22,000 cP (Brookfield RVT, 25 °C)
• Cure/Working Time: Anaerobic cure with activator; full strength typically 24–72 hours depending on bondline and substrate
• Tensile Strength: 34 N/mm² (4,900 psi)
• Lap Shear Strength: ≥15.2 N/mm² (2,200 psi) on steel with activator applied to one surface
• Elongation at Break: 135%
• Tensile Modulus: 300 N/mm² (44,000 psi)
• Service Temperature: Maintains strength up to 150 °C (302 °F)
• Typical Uses: Bonding ferrites to plated materials, loudspeaker hardware, jewelry, electric motors
• Shelf Life: Store 8–21 °C (46–70 °F) in unopened container; avoid extremes below 8 °C or above 28 °C

Approvals & Specifications

• ISO 4587: Shear strength testing
• ISO 527-2: Tensile testing
• IEC 60250: Dielectric constant / dissipation factor
• IEC 60093: Volume and surface resistivity
• IEC 60243-1: Dielectric breakdown strength

Typical Aircraft MRO / AOG Applications

• Bonding sensors and ferrites in avionics modules
• Assembly of electric motors for aircraft systems
• Securing loudspeaker and audio components in cockpit or cabin systems
• Fast repairs on metal-plated components in maintenance operations
• Precision bonding for small metal assemblies during AOG repairs

Compatibility & Safety Notes

• Not recommended for pure oxygen or strong oxidizers (e.g., chlorine)
• Check compatibility with plastics; thermoplastics may stress crack
• Ensure surfaces are clean, dry, and free from grease
• Use PPE including gloves and eye protection when handling
• Follow SDS for safe handling and disposal

Packaging & Procurement

• Available in standard industrial syringes and bulk containers
• Market packs designed for easy dispensing in maintenance environments
• Store in dry, temperature-controlled environment (8–21 °C / 46–70 °F)
• Single-component system eliminates mixing, reducing preparation time

Why LOCTITE AA 326 is Chosen for AOG / MRO

• Fast fixturing reduces downtime during urgent repairs
• Reliable bonding across metals and ferrites in operational conditions
• Versatile use for small assemblies, electronics, and precision repairs
• Portable and easy-to-apply system supports field maintenance

Practical Suggestions for Your Team (AOG Mindset)

• Keep activator and adhesive in stock for rapid repairs
• Train staff on proper surface preparation and activator application
• Maintain bondline within 0.1–0.5 mm for optimal cure speed
• Wipe excess adhesive immediately with organic solvent
• Allow full strength development (24–72 hours) before service load

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel
• Product ID: LOCTITE AA 326
• MIL/OEM Codes: Refer to Henkel LMS documentation for batch-specific QC and specifications

Alternative Names & Descriptions

• LOCTITE 326
• Henkel AA 326 Adhesive
• Polyurethane Methacrylate Acrylic Adhesive
• High-Viscosity Fast Cure Acrylic
• LOCTITE AA 326 Transparent Adhesive