Henkel LOCTITE-AA-326 (250-ml-Btl)

Additional Product Information

Overview

LOCTITE AA 326 is a high-viscosity, one-component acrylic adhesive used in aviation and MRO operations for fast, reliable bonding of metals and composites. Teams rely on it for its rapid room temperature cure with an activator, strong tensile performance, and precision bonding capabilities, making it ideal for critical assemblies and components that demand speed and durability.

Key Technical Specs for LOCTITE AA 326

• Type: Acrylic adhesive, polyurethane methacrylate chemistry
• Appearance: Transparent, yellow to light amber liquid
• Components: One-component, no mixing required
• Viscosity/Consistency: High viscosity; Brookfield RVT 14,000 22,000 cP at 25 C
• Cure/Working Time: Anaerobic with activator; fixturing within minutes, full strength typically 24 72 hours
• Tensile/Peel Strength: Tensile strength 34 N/mm (4,900 psi), elongation at break 135%
• Shore Hardness: Not specified
• Service Temperature: Maintains performance up to 120 C (248 F)
• Typical Uses: Bonding ferrites to plated materials, loudspeaker hardware, jewelry, precision assemblies
• Shelf Life: Store at 8 21 C (46 70 F) in unopened container; avoid contamination

Approvals & Specifications

• ISO 4587: Lap 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

• Fast fixturing of electrical components in aircraft systems
• Bonding of small metal parts during emergency repair (AOG) operations
• Assembly of avionics and sensors requiring precise alignment
• Repair of lightweight structural or electronic components
• Bonding ferrites and conductive materials in motor assemblies

Compatibility & Safety Notes

• Compatible with metals and composites; not recommended for most thermoplastics
• Use PPE: gloves and eye protection
• Ensure surfaces are clean and grease-free
• Activator 7649 recommended for reliable fast cure
• Avoid contact with strong oxidizers or pure oxygen systems

Packaging & Procurement

• Available in various container sizes for industrial use
• Market packs designed for ease of handling and application
• Store in a dry location at 8 21 C (46 70 F)
• One-component formulation simplifies use in field and workshop settings

Why LOCTITE AA 326 is Chosen for AOG / MRO

• Fast curing reduces aircraft downtime
• High reliability under thermal and chemical exposure
• Versatile for multiple substrates and small component assemblies
• Portable and easy to apply in field or hangar environments

Practical Suggestions for Your Team (AOG Mindset)

• Keep Activator 7649 on hand for immediate fixturing
• Stock small-volume containers for quick field repairs
• Train maintenance teams on proper surface preparation and adhesive handling
• Ensure bondline gaps do not exceed 0.5 mm for optimal cure
• Wipe excess adhesive immediately with organic solvent

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel Corporation
• Product ID: LOCTITE AA 326
• MIL/OEM Codes: As per local Henkel LMS and batch-specific test reports

Alternative Names & Descriptions

• LOCTITE 326
• AA 326 Adhesive
• Henkel Acrylic Adhesive 326
• LOCTITE AA-326
• Polyurethane Methacrylate Adhesive