EPOCAST 1614-A3
Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics
Main features
- Extended 16-Hour Working Life
- Low-Density Structural Reinforcement
- Elevated-Temperature Compressive Strength
Product Description
EPOCAST 1614-A3 Epoxy Structural Syntactic Adhesive is a low-density, flame-retardant, one-component frozen epoxy structural syntactic adhesive for aerospace honeycomb composite reinforcement and bonding. The premixed paste provides up to 16 hours of working life and typical wet density below 0.75 g/cm^3. It cures at elevated temperature and retains typical compressive strength of 7.0 to 9.0 ksi at 177 deg C after the stated cure. Applications include honeycomb core reinforcement, structural joining, fastener or attachment potting, and panel-edge reinforcement.
Key features
- Premixed frozen format: The one-component paste is supplied premixed and frozen for controlled preparation before use.
- Extended working life: Working life is up to 16 hours, depending on process requirements.
- Elevated-temperature strength: Typical compressive strength is 7.0 to 9.0 ksi at 177 deg C after cure.
Applications
- Honeycomb core reinforcement
- Structural bonding and joining
- Fastener or attachment potting
- Panel-edge reinforcement
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
Typical values apply to the frozen one-component material before cure.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Reddish brown paste | - | Visual |
| Wet density | < 0.75 | g/cm^3 | ASTM D1875 |
| Viscosity | Paste | - | ASTM D2196 at 25 deg C |
| Extrusion rate | > 1,000 | g/min | At 25 deg C after 8 hours; OEM method |
| Sag resistance | <= 0.1 | in | OEM method |
| Working life | Up to 16 | h | Depends on process requirements |
| Shelf life | 6 | months | Stored at -18 deg C or lower in the original sealed container |
After-processing / final-state properties
Typical cured values remain paired with the stated cure and test temperatures.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Cure cycle | 90 at 127 deg C; 60 at 177 deg C | min | Material temperature; typical 2 to 4 deg C/min ramp |
| Cured density | 0.70 to 0.75 | g/cm^3 | ASTM D1622 |
| Compressive strength at 23 deg C | 13 to 16 | ksi | ASTM D695 |
| Compressive strength at 149 deg C | 8.0 to 10.0 | ksi | ASTM D695 |
| Compressive strength at 177 deg C | 7.0 to 9.0 | ksi | ASTM D695 |
| Tensile lap shear | 1.2 to 1.5 | ksi | Aluminum-to-aluminum at 23 deg C; ASTM D1002 |
| Glass transition temperature | 372 (190) | deg F (deg C) | TMA; ASTM E1824; cured 1 hour at 177 deg C |
| CTE below Tg | 34 | um/(m deg C) | ASTM E831; cured 1 hour at 177 deg C |
