Henkel LOCTITE-AA-3381 (1LTR-BOTTLE)

Additional Product Information

Overview

LOCTITE AA 3381 is a one-component, UV-curable acrylic adhesive designed for bonding, potting, and sealing glass-to-metal assemblies. Widely used in aviation and MRO operations, it provides high-speed curing and excellent environmental resistance, making it reliable for teams needing durable bonds under thermal cycling and harsh exposure. Its flexibility and strength make it a trusted solution for precision assemblies, including disposable medical devices and critical aircraft components.

Key Technical Specs for LOCTITE AA 3381

• Type: Acrylic, acrylated urethane
• Size/Volume: Supplied in various industrial packaging
• Color: Translucent, colorless liquid
• Viscosity/Consistency: Medium (3,600 6,600 mPa s / cP at 25 C)
• Cure/Working Time: UV light at 365 nm; fixture time ?15 seconds (medium pressure Hg Arc bulb)
• Tensile/Peel Strength: 7.91 N/mm (1,135 psi) tensile strength at break; 330% elongation at break
• Shore Hardness: ?72 (Durometer A, ISO 868)
• Service Temperature: Suitable for thermal cycling; withstands heat and humidity exposure
• Typical Uses: Glass-to-metal bonding, potting, sealing, assembly of disposable medical devices
• Shelf Life: Store at 2 8 C (36 46 F); avoid contamination and prolonged light exposure

Approvals & Specifications

• ISO 10993 for biocompatibility
• Henkel Quality Management System compliance

Typical Aircraft MRO / AOG Applications

• Bonding glass-to-metal joints in avionics assemblies
• Sealing sensors and optical components
• Potting electronic modules in aircraft systems
• High-speed assembly of lightweight structural components

Compatibility & Safety Notes

• Compatible with glass, steel, aluminum, polycarbonate, and other rigid substrates
• Not recommended for pure oxygen, chlorine, or strong oxidizing environments
• Use appropriate PPE; minimize light exposure during handling
• Ensure surfaces are clean and free from grease for optimal bonding

Packaging & Procurement

• Available in industrial syringes and bulk containers
• Storage: Keep unopened containers at 2 8 C (36 46 F)
• Easy to dispense via applicators with black feedlines
• Single-component formulation requires no mixing

Why LOCTITE AA 3381 is Chosen for AOG / MRO

• Rapid UV curing accelerates production and reduces downtime
• High reliability under thermal and environmental stress
• Versatile for multiple substrates and precision assemblies
• Portable, single-component application for field use

Practical Suggestions for Your Team (AOG Mindset)

• Stock sufficient quantities for urgent repair and assembly tasks
• Train personnel on UV curing techniques and safe handling
• Use black feedline applicators to minimize premature curing
• Allow bonds to cool before subjecting to service loads

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel Corporation
• Product ID: LOCTITE AA 3381
• MIL/OEM/Export Codes: Refer to Henkel Technical Data Sheet for batch-specific codes

Alternative Names & Descriptions

• LOCTITE AA 3381
• Henkel UV Acrylic Adhesive AA 3381
• AA 3381 Potting and Sealing Adhesive
• UV-Curable Acrylic Adhesive LOCTITE 3381
• AA3381 Glass-to-Metal Bonding Adhesive