EPOCAST 35-A/927
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
- 149 deg C Laminating Performance
- 4 to 5-Hour Work Life
- BMS 8-214 Glass-Fabric Lamination
Product Description
EPOCAST® 35 A / Hardener 927 is a two-component, solvent-free epoxy laminating system for repairing and fabricating laminated composite structures. The 100:25 weight-ratio system has a medium mixed viscosity that readily wets glass fabrics and provides a typical 4–5 hour work life at 25°C for extended fabrication and large repair procedures. The cured system is designed to perform at temperatures up to 149°C and can be processed using either of two elevated-temperature cure cycles. EPOCAST 35 A / Hardener 927 is qualified to BMS 8-214.
Key features
- High-temperature performance: Designed to perform at temperatures up to 149°C after the specified elevated-temperature cure.
- Extended working time: Provides a typical 4–5 hour work life for large composite repairs and extended fabrication procedures.
- Glass-fabric wetting: The 7,000 cP mixed system readily wets glass fabrics for laminated composite construction and repair.
Applications / Suitable for
- Repair of laminated composite structures
- Fabrication of glass-fabric composite laminates
- Composite applications requiring elevated-temperature performance
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Typical values for the individual components and mixed system. These values are not product specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Amber / dark amber / amber | — | Visual; resin / hardener / mixed system |
| Density at 25°C | 1.19 / 1.00 / 1.13 | g/cm³ | ASTM D792; resin / hardener / mixed system |
| Viscosity at 25°C | 3,200 / 25,000 / 7,000 | cP | ASTM D2196; resin / hardener / mixed system |
| Mix ratio | 100:25 | Parts by weight | EPOCAST 35 A Resin : Hardener 927 |
| Work life | 4–5 | Hours | 100 g mixed mass at 25°C |
| Typical cure cycles | 4 at 83°C or 2 at 121°C | Hours | Cure 1 or Cure 2 |
| Storage temperature | 2–8 | °C | Dry place in original sealed containers |
| Shelf life | 1 | Year | From shipment under stated storage conditions |
After-processing / final-state properties
Typical cured properties are shown as Cure 1 / Cure 2. Cure 1 is 4 hours at 83°C; Cure 2 is 2 hours at 121°C.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Durometer hardness | 93 / 93 | Shore D | ASTM D2240; Cure 1 / Cure 2 |
| Flexural strength | 77.4 (534) / 104.0 (717) | ksi (MPa) | ASTM D790; as cured at 25°C; Cure 1 / Cure 2 |
| Flexural strength after boiling-water exposure | 52.1 (359) / 68.6 (473) | ksi (MPa) | ASTM D790; after 2 hours boiling water, tested at 25°C |
| Flexural modulus | 3,021 (20,827) / 3,801 (26,206) | ksi (MPa) | ASTM D790; as cured at 25°C; Cure 1 / Cure 2 |
| Compressive strength | 61.4 (423) / 71.9 (496) | ksi (MPa) | ASTM D695; as cured at 25°C; Cure 1 / Cure 2 |
| Compressive strength at 149°C | 2.0 (13.8) / 3.4 (23.4) | ksi (MPa) | ASTM D695; tested at 149°C; Cure 1 / Cure 2 |
| Compressive modulus | 3,751 (25,862) / 4,031 (27,793) | ksi (MPa) | ASTM D695; as cured at 25°C; Cure 1 / Cure 2 |
| Tensile lap shear | — / 1,090 (7.5) | psi (MPa) | ASTM D1002; aluminum-to-aluminum, as cured at 25°C; Cure 2 value only |
