Product Name
Loctite EA 9394 AERO Thixotropic High-Temp Epoxy Gel - 50ml Cartridge
Brief Description
Loctite EA 9394 AERO is a two-part, thixotropic structural epoxy paste adhesive designed for high-performance applications, particularly in aerospace. It offers excellent strength at temperatures up to 177°C (350°F) and higher, cures at room temperature, and provides good gap-filling capabilities. This product is also known as Hysol EA 9394 AERO.
Popular Applications & Uses
- Aerospace structural bonding, including metals and honeycomb structures.- Potting and encapsulation of electronic components.- Filling gaps and irregularities in various assemblies.- Liquid shim applications for precision assemblies.- Industrial maintenance for demanding bonding tasks requiring high strength and thermal stability.
Industries that Commonly Use It
- Aerospace/Defense- General Manufacturing- LED/Electronics (for potting and encapsulation)- Metal Fabrication (for metal bonding)- Government & Military (due to adherence to military specifications)
Special and Unique Features
- Thixotropic nature ensures non-sag application, ideal for vertical or overhead surfaces.- Qualified to various aerospace and military specifications (e.g., MMM-A-132, Airbus CML, Boeing, Pratt and Whitney, Rolls Royce).- Dual cure capability: achieves normal performance with room temperature cure (3-5 days) or accelerated heat cure (e.g., 1 hour at 66°C/150°F).- Long pot life of approximately 90 minutes at 25°C (77°F) for extended working time.- Low toxicity formulation.
Key Properties
- **Product Type:** Two-part structural epoxy paste adhesive.- **Service Temperature:** Excellent strength up to 177°C (350°F) and higher.- **Cure Type:** Room temperature cure (with optional accelerated heat cure).- **Color (Mixed):** Gray.- **Mix Ratio (by weight):** 100:17 (Part A: Part B).- **Mixed Viscosity @ 25°C:** Approximately 160,000 cP (160 Pa·s).- **Tensile Strength @ 25°C:** 6,675 psi (46.0 MPa).- **Shore D Hardness @ 25°C:** 88.- **Glass Transition Temperature (Tg, Dry):** Approximately 78°C (172°F).- **Shelf Life:** 1 year at <25°C (77°F).
Surface Compatibility
- Metals (e.g., aluminum).- Composites.- Honeycomb structures.- Electronic components.
Known backups / known substitutes
- Loctite EA 9394S AERO: A similar two-part structural paste adhesive, also room temperature curing, available in Semkits with a slight difference in thixotrope content in Part B.- Loctite EA 9394/C-2 AERO: An elevated temperature curing structural paste adhesive with high service temperature and long pot life.- Loctite EA 9395 AERO: Another two-component adhesive system from Henkel with excellent strength properties at high temperatures.- Loctite EA 934NA AERO: A two-component thixotropic paste adhesive with superior strength to 149°C (300°F).- 3M Scotch-Weld Epoxy Adhesive DP110 Gray: A flexible, fast-setting, two-part epoxy adhesive suitable for various substrates including metals, ceramics, composites, and plastics.
Comparison Note
Loctite EA 9394 AERO stands out as a premium aerospace-grade structural epoxy adhesive, offering a unique combination of high-temperature performance, room-temperature cure versatility, and thixotropic properties for ease of application. While several substitutes exist, particularly within the Loctite AERO series, EA 9394 AERO's specific qualifications and balanced properties make it a preferred choice for critical bonding, potting, and filling applications in demanding environments. Its ability to cure at room temperature while maintaining high strength at elevated temperatures provides significant operational flexibility compared to adhesives requiring mandatory heat cure.
