• Item Name: ARALDITE® CW 1227 / ARADUR® HW 1227
• Manufacturer: Huntsman
• Technologies: Epoxy & Epoxy Derivatives, Composite Materials
• Color: Contact to Techniq VN for details.
• Cure Type: Casting Resin, high temperature curing, room temperature curing
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
ARALDITE® CW 1227 / ARADUR® HW 1227 is a prefilled, semi-flexible epoxy casting resin system offering excellent mechanical properties, high thermal shock resistance, and long-term strength. It features good electrical performance, room-temperature curing, and a low coefficient of thermal expansion. The system is designed for both conventional casting and automatic pressure gelation (APG) processes, and its semi-flexible nature makes it crack-resistant and durable in demanding applications.
Electrical insulators for medium and high voltage
Instrument transformers and power transformers
Motors and generators
Encapsulation of large metal components
Suitable for conventional casting, pressure gelation, or APG processing
| Property | Before Mixed | After Mixed (Cured at 23°C → 6h at 80°C + 10h at 130°C) | Unit | Test Method |
|---|---|---|---|---|
| Tensile strength | – | 70–80 | N/mm² | ISO R 527 |
| Elongation at break | – | 1–2 | % | ISO R 527 |
| Flexural strength | – | 135–145 | N/mm² | ISO 178 |
| Compressive strength | – | 120–130 | N/mm² | ISO 604 |
| Impact strength | – | 11–13 | kJ/m² | ISO 179 |
| Glass transition temperature | – | 60–70 | °C | IEC 1006 |
| Coefficient of linear thermal expansion | – | 41–46 | 10⁻⁶ K⁻¹ | DIN 53752 |
| Thermal conductivity | – | 0.8–0.9 | W/m·K | ISO 8894-1 |
| Water absorption (10 days at 23°C) | – | 0.10–0.15 | % by wt. | ISO 62 |
| Decomposition temperature | – | >350 | °C | DTA |
| Density | – | 1.77–1.81 | g/cm³ | DIN 55990 |
| Electrical breakdown strength | – | 18–20 | kV/mm | IEC 60243-1 |
| HV arc resistance | – | 181–185 | s | ASTM D 495 |
| Tracking resistance | – | >600 | M-0.0 | IEC 112 |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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