Product Introduction of 3M Scotch-Weld Structural Adhesive EC-3964
3M Scotch-Weld Structural Adhesive EC-3964 is a sprayable solution version of 3M™ Structural Adhesive Film AF 147, engineered for bonding screen-in-sound suppression panels on aircraft engine nacelles. This structural adhesive offers high bond strength across a wide temperature range from -67°F to 300°F (-55°C to 150°C), making it suitable for use in demanding aerospace environments and challenging design configurations.
Designed for a 350°F (175°C) cure, 3M™ Scotch-Weld™ Structural Adhesive EC-3964 can be applied by spraying directly onto screens without filling holes, offering efficiency and ease of use. It demonstrates outstanding bonding performance for metal-to-metal and metal-to-honeycomb structures. Once cured, it delivers strong, durable bonds with excellent environmental resistance.
Key Features
- Designed for high-temperature cure at 350°F (175°C)
- Sprayable solution version of 3M™ Structural Adhesive Film AF 147
- Can be sprayed onto screens without clogging holes
- Ideal for bonding screen-in-sound suppression panels on aircraft engine nacelles
- Outstanding strength across a wide temperature range (-67°F to 300°F / -55°C to 150°C)
- Superior performance in metal-to-metal and metal-to-honeycomb bonding applications
Key Applications
- Bonding screens in sound suppression panels of aircraft engine nacelles
- Metal-to-metal structural bonding in aerospace applications
- Metal-to-honeycomb bonding for lightweight structural assemblies
- High-performance aerospace bonding requiring wide temperature range stability
Performance Data
| Test Temperature | Typical Value | |
|---|---|---|
| °F | °C | psi (MPa) |
| -67 | -55 | 4700 (32.4) |
| 75 | 24 | 4700 (32.4) |
| 300 | 149 | 1800 (12.4) |
Floating Roller Peel Test
| Test Temperature | Typical Value |
|---|---|
| 75°F (24°C) | 31 piw (138 N/25 mm) AC |
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| Property | Value |
|---|---|
| Adhesive Type | Epoxy |
| Application | Structural Bonding, Metal Bonding |
| Brands | Scotch-Weld™ |
| Container Size (Imperial) | 1 Gallon |
| Container Size (Metric) | 3.79 Liter |
| Cure Temperature (Celsius) | 176 °C |
| Cure Temperature (Fahrenheit) | 350 °F |
| Product Color | Light Tan |
| Surface Treatment | No |
