EPOCAST 1619-1
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
- Flame-Retardant Epoxy Syntactic
- Room-Temperature Encapsulation Cure
- Pourable/Extrudable Mixed Processing
Product Description
EPOCAST® 1619-1 A/B FR Epoxy Syntactic is a two-component, low-density, flame-retardant epoxy syntactic formulated for potting fasteners in honeycomb structures. The mixed off-white semi-paste has a density of ≤0.70 g/cm³ and can be poured or extruded through a 1/8 in. (3 mm) nozzle for placement in lightweight aerospace assemblies. It can be cured at room temperature or with a moderate elevated-temperature cycle and is qualified to Boeing BMS5-28, Type 19. The cured material resists water, fungus, and most aircraft fluids and provides documented insert pull-out and torque-out performance.
Key features
- Low-density mixed system: Mixed density of ≤0.70 g/cm³ supports weight-sensitive honeycomb and aerospace structures.
- Pourable and extrudable application: The mixed semi-paste delivers ≥250 g/min through a 1/8 in. nozzle under the BMS5-28 test method.
- Aerospace-qualified flame resistance: Qualified to Boeing BMS5-28, Type 19, with a passing 12-second vertical-burn result and no dripping.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied and processing data. Mix the resin and hardener for 3–5 minutes at 100:25 by weight. Remix the resin before use if filler separation occurs, and keep material above 18°C during mixing.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | A resin: off-white; B hardener: amber; mixed: off-white | — | Visual |
| Density | A resin: 0.60; B hardener: 1.00; mixed: ≤0.70 | g/cm³ | ASTM D1622 |
| Viscosity / consistency | A resin: paste; B hardener: 400 cP; mixed: semi-paste | — | ASTM D2196 at 25°C |
| Mix ratio | 100:25 | Parts by weight | A resin:B hardener |
| Extrudability | ≥250 | g/min | BMS5-28; 1/8 in. nozzle |
| Gel time | 20–40 | min | 62.5 g at 25°C |
| Typical cure cycles | 7 days at 25°C; or gel at room temperature followed by 5 hours at 52°C | — | Typical cure schedules |
After-processing / final-state properties
Typical cured-property data determined using the stated test methods and conditions. These values do not constitute product specifications or universal design allowables.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Lap shear strength | 1800 (12.4) | psi (MPa) | ASTM D1002; aluminum-to-aluminum at 23°C |
| Compressive strength at 23°C | 7200 (49.7) | psi (MPa) | ASTM D695 |
| Compressive strength at 82°C | 480 (3.3) | psi (MPa) | ASTM D695 |
| Flammability | Pass; <1 s extinguishing time; <1.0 in. burn length; no drip | — | BMS5-28; 12-second vertical burn |
| Weight gain after fluid or water exposure | <1.0 for each listed medium | % wt. | ASTM D543; 24 hours at 25°C in Mil-S-3136 Type III fluid, Mil-H-5606 hydraulic fluid, Skydrol 500A and distilled water |
| Hardness | 65 | Shore D | ASTM D2240 |
| Insert pull-out strength | 400 (1782) | lb (N) | BMS5-28 |
| Insert torque-out strength | 110 (12.4) | lbf-in (N·m) | BMS5-28 |
