LOCTITE EA 9361
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- High-Elongation Flexible Bonding
- Long 120-Minute Pot Life
- Cryogenic Lap-Shear Performance
Product Description
LOCTITE EA 9361 AERO is a high-elongation, two-component aerospace epoxy paste adhesive that cures at room temperature. It combines shear and peel strength with flexibility and has a 120-minute pot life at 25 deg C for a 450 g mixed mass. Parts A and B mix 100:140 by weight to form a grey paste. Normal cure is 5 to 7 days at 25 deg C, while a 1-hour cure at 82 deg C can provide complete cure for small masses. The adhesive is used for general-purpose bonding and sealing, including applications requiring high elongation and cryogenic performance.
Key features
- High Elongation: Cured bulk material reaches 40% elongation at break at 25 deg C.
- Long Pot Life: Pot life is 120 minutes at 25 deg C for a 450 g mixed mass.
- Cryogenic Shear Performance: Typical tensile lap shear is 27.6 MPa at -196 deg C after a 5-day cure at 25 deg C.
Applications
General-purpose aerospace bonding and sealing, including high-elongation and cryogenic applications.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Mechanical Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Part A viscosity | 70 | Pa s | Brookfield HBT, spindle 5 at 20 rpm, 25 deg C |
| Part B viscosity | 95 | Pa s | Brookfield HBT, spindle 7 at 20 rpm, 25 deg C |
| Mixed viscosity | 80 | Pa s | Brookfield HBT, spindle 5 at 20 rpm, 25 deg C |
| Part A density | 1.33 | g/ml | As supplied |
| Part B density | 1.26 | g/ml | As supplied |
| Mixed density | 1.28 | g/ml | Mixed material |
| Mix ratio | 100:140 | Part A : Part B, by weight | |
| Pot life | 120 | min | 450 g mass, 25 deg C; ASTM D2471 water bath |
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile lap shear, -196 deg C | 27.6 | MPa | ASTM D1002; 2024-T3 bare aluminum, phosphoric acid anodized per ASTM D3933; cured 5 days at 25 deg C |
| Tensile lap shear, -55 deg C | 27.6 | MPa | ASTM D1002; 2024-T3 bare aluminum, phosphoric acid anodized per ASTM D3933; cured 5 days at 25 deg C |
| Tensile lap shear, 25 deg C | 24.1 | MPa | ASTM D1002; 2024-T3 bare aluminum, phosphoric acid anodized per ASTM D3933; cured 5 days at 25 deg C |
| Tensile lap shear, 71 deg C | 5.9 | MPa | ASTM D1002; 2024-T3 bare aluminum, phosphoric acid anodized per ASTM D3933; cured 5 days at 25 deg C |
| T-peel, 25 deg C | 111 | N/25 mm | ASTM D1876; 2024-T3 bare aluminum, phosphoric acid anodized per ASTM D3933; cured 5 days at 25 deg C |
| Elongation at break, 25 deg C | 40 | % | ASTM D638; 3.18 mm cast specimen |
| Shore D hardness, 25 deg C | 70 | Cured bulk material | |
| Tensile modulus, 25 deg C | 723 | MPa | ASTM D638; 3.18 mm cast specimen |
