EPOCAST 1626
Harmonization Code : 3506.10.00.00 | 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
Main features
- 0.65 g/cc Mixed Density
- 60-Minute Gel Time
- Honeycomb Filling and Potting
Product Description
EPOCAST 1626 A/B is a two-part epoxy syntactic compound for core filling, edge sealing, and bushing or fastener potting in honeycomb structures. Its brown Part A resin and off-white Part B hardener mix at 100:29 by weight to form a brown, low-flow paste with typical density of 0.65 g/cc. For a 50 g mass at 25 deg C, typical gel time is 60 minutes. The toughened system is designed to resist cracking in applications exposed to vibration and broad temperature cycling. BMS 5-28, Type 26 qualification applies to the system; typical cured properties include lap shear, peel, impact, hardness, tensile strength, and elongation.
Key features
- Crack-Resistant Toughened Syntactic: The system is designed to resist cracking under vibration and broad temperature cycling.
- 0.65 g/cc Mixed Density: Part A and Part B combine at 100:29 by weight to form a brown, low-flow paste.
- 60-Minute Gel Time: This typical value applies to a 50 g mass at 25 deg C.
Applications
Honeycomb core filling; edge sealing; bushing and fastener potting; aerospace composite structures.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Mechanical Properties
Additional Information
As-supplied / before-processing properties
Typical Part A, Part B, and mixed-system properties from the exact Huntsman TDS.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Brown / off-white / brown | - | Part A / Part B / mixed system; visual |
| Density | 0.50 / 1.10 / 0.65 | g/cc | Part A / Part B / mixed system; ASTM D1622 |
| Viscosity | Paste / paste / paste | - | Part A / Part B / mixed system; non-flow at 25 deg C; ASTM D2196 |
| Gel time | 60 | minutes | Mixed system; 50 g at 25 deg C; ASTM D2471 |
| Mix ratio | 100:29 | parts by weight | Part A resin:Part B hardener |
| Component shelf life | 6 | months | Part A and Part B; unopened at 25 deg C |
After-processing / final-state properties
Typical cured-system values; cure schedule is 7 days at 25 deg C or 24 hours at 25 deg C plus 2 hours at 71 deg C.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile lap shear, aluminum | 700 | psi | At 25 deg C; ASTM D1002 |
| T-peel, aluminum | 16 | pli | ASTM D1876 |
| Notched Izod impact | 0.52 | ft-lb/in. | ASTM D256 |
| Durometer hardness | Shore D 48 | - | ASTM D2240 |
| Tensile strength | 600 | psi | ASTM D638 |
| Elongation | 25 | % | ASTM D638 |
