Loctite EA 9392 AERO Epoxy Adhesive
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- 1,000 psi Aluminum Lap Shear
- Thixotropic Gap-Filling Control
- 75-Minute Working Window
Product Description
LOCTITE® EA 9392 AERO Epoxy Paste Adhesive is a two-component, room-temperature-curing epoxy paste adhesive for durable bonded assemblies. The thixotropic material supports gap-filling and potting applications while remaining workable for 75 minutes at 77°F/25°C when evaluated as a 100 g mass. It develops handling strength after 24 hours at 77°F/25°C and may be fully cured at room temperature or with an accelerated thermal schedule. Testing on prepared 2024-T3 aluminum demonstrates tensile lap shear performance across temperatures from -67°F/-55°C to 350°F/177°C, with 1,000 psi/6.9 MPa retained at the upper test temperature.
Key features
- Elevated-temperature shear performance: Retains 1,000 psi/6.9 MPa tensile lap shear strength at 350°F/177°C under ASTM D1002 test conditions.
- Thixotropic epoxy paste: Supports gap filling and potting while limiting uncontrolled flow during application.
- Flexible cure scheduling: Cures in 5–7 days at 77°F/25°C or in 1 hour at 180°F/82°C for small adhesive masses.
Applications / Suitable for
- Bonded assemblies requiring room-temperature cure
- Gap-filling adhesive applications
- Potting applications
- Applications evaluated for shear strength at elevated temperatures
TDS, SDS & Technical Documents
Technical Specifications
Physical Properties
Viscosity (Part A)
420,000 mPa.s
Viscosity (Part B)
660,000 mPa.s
General Properties
Mix Ratio
100:32
The amount of a constituent divided by the total amount of all other constituents in a mixture
Additional Information
Technical properties
As-supplied / before-processing properties
Typical component, mixed-material and processing properties. Component identities and test conditions are retained where relevant.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product type | Two-component epoxy paste adhesive | — | As supplied |
| Rheology | Thixotropic | — | Uncured material |
| Color — Part A | Gray | — | Visual |
| Color — Part B | Amber | — | Visual |
| Color — mixed | Gray | — | After mixing Parts A and B |
| Viscosity — Part A | 4,200 | Poise | 77°F; Brookfield HBT, spindle 7 at 20 rpm |
| Viscosity — Part A | 420 | Pa·s | 25°C; Brookfield HBT, spindle 7 at 2.1 rad/s |
| Viscosity — Part B | 6,600 | Poise | 77°F; Brookfield HBT, T-bar C at 5 rpm |
| Viscosity — Part B | 660 | Pa·s | 25°C; Brookfield HBT, spindle 6 at 0.5 rad/s |
| Density — Part A | 1.37 | g/ml | Uncured component |
| Density — Part B | 1.0 | g/ml | Uncured component |
| Density — mixed | 1.29 | g/ml | Parts A and B combined |
| Mix ratio by weight — Part A : Part B | 100 : 32 | parts | Weight basis |
| Mix ratio by volume — Part A : Part B | 100 : 44 | parts | Volume measurement is not recommended for structural applications unless ratio-control precautions are used |
| Pot life | 75 | minutes | 100 g mass at 77°F/25°C; ASTM D2471 in water bath |
| Handling-strength time | 24 | hours | At 77°F/25°C; full bond strength has not yet developed |
| Room-temperature cure | 5–7 | days | At 77°F/25°C for normal performance |
| Accelerated complete cure | 1 | hour | At 180°F/82°C; small masses only |
| Maximum stated accelerated-cure temperature | 200 / 93 | °F / °C | Accelerated curing; small masses only |
| Maximum recommended mixed quantity | 450 | g | Do not mix larger quantities because dangerous exothermic heat buildup may occur |
| Shelf life — Part A | 1 | year | Stored below 40°F/4°C |
| Shelf life — Part B | 1 | year | Stored below 40°F/4°C |
| Shelf life — Part A | 1 | year | Stored below 77°F/25°C |
| Shelf life — Part B | 1 | year | Stored below 77°F/25°C |
Technical properties
After-processing / final-state properties
Typical cured adhesive and bonded-joint results. Cure schedule, substrate preparation, test temperature and test method are retained because they materially affect interpretation.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile lap shear strength at -67°F/-55°C | 3,500 / 24.1 | psi / MPa | ASTM D1002; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Tensile lap shear strength at 77°F/25°C | 4,300 / 29.6 | psi / MPa | ASTM D1002; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Tensile lap shear strength at 180°F/82°C | 2,500 / 17.2 | psi / MPa | ASTM D1002; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Tensile lap shear strength at 250°F/121°C | 2,000 / 13.8 | psi / MPa | ASTM D1002; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Tensile lap shear strength at 300°F/149°C | 1,300 / 9.0 | psi / MPa | ASTM D1002; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Tensile lap shear strength at 350°F/177°C | 1,000 / 6.9 | psi / MPa | ASTM D1002; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Blister shear strength at -67°F/-55°C | 3,000 / 20.7 | psi / MPa | ASTM D3165; 2024-T3 bare FPL-etched aluminum; cured 7 days at 77°F/25°C |
| Blister shear strength at 77°F/25°C | 4,000 / 27.6 | psi / MPa | ASTM D3165; 2024-T3 bare FPL-etched aluminum; cured 7 days at 77°F/25°C |
| Blister shear strength at 180°F/82°C | 2,500 / 17.2 | psi / MPa | ASTM D3165; 2024-T3 bare FPL-etched aluminum; cured 7 days at 77°F/25°C |
| Blister shear strength at 250°F/121°C | 2,000 / 13.8 | psi / MPa | ASTM D3165; 2024-T3 bare FPL-etched aluminum; cured 7 days at 77°F/25°C |
| Blister shear strength at 300°F/149°C | 1,000 / 6.9 | psi / MPa | ASTM D3165; 2024-T3 bare FPL-etched aluminum; cured 7 days at 77°F/25°C |
| T-peel strength at 77°F/25°C | 20 / 89 | lb/in / N/25 mm | ASTM D1876; 2024-T3 bare PAA aluminum; cured 5 days at 77°F/25°C |
| Bell peel strength at 77°F/25°C | 40 / 178 | lb/in / N/25 mm | ASTM D1876; 2024-T3 bare PAA aluminum; cured 7 days at 77°F/25°C |
| Bell peel strength at 180°F/82°C | 30 / 133 | lb/in / N/25 mm | ASTM D1876; 2024-T3 bare PAA aluminum; cured 7 days at 77°F/25°C |
| Service temperature based on retained lap shear | Approximately 350 / 177 | °F / °C | Defined as the temperature at which 1,000 psi/6.9 MPa is retained under ASTM D1002 |
| Tensile strength at 77°F/25°C | 6,000 / 41.3 | psi / MPa | ASTM D638; 0.125 in/3.18 mm cast specimen |
| Tensile modulus at 77°F/25°C | 475 / 3,273 | ksi / MPa | ASTM D638; 0.125 in/3.18 mm cast specimen |
| Elongation at break at 77°F/25°C | 4 | % | ASTM D638; 0.125 in/3.18 mm cast specimen |
| Glass-transition temperature — dry | 164 / 73 | °F / °C | Cured 7 days at 77°F/25°C |
| Glass-transition temperature — wet | 144 / 62 | °F / °C | Cured 7 days at 77°F/25°C; immersed in 77°F/25°C water until equilibrium |
| Glass-transition temperature — dry, accelerated cure | 356 / 180 | °F / °C | Cured 1 hour at 180°F/82°C |
| Compressive strength at 2% offset | 9,300 / 64.1 | psi / MPa | ASTM D695 at 77°F/25°C; 1.15 in/29.2 mm diameter × 1 in/25.4 mm cylindrical specimens; cured 7 days at 77°F/25°C |
