• Item Name: Araldite® CW 5730 N Resin / Aradur® HY 5731 Hardener
• Manufacturer: Huntsman Advanced Materials
• Technologies: Filled epoxy resin system, anhydride-cured, thermal class F, UL 94 V-0 certified
• Color: Resin black paste, hardener brown liquid, cured system dark solid
• Cure Type: High-temperature curing (3h at 80°C + 6h at 100°C)
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
Araldite® CW 5730 N with Aradur® HY 5731 is a Class F epoxy casting resin system designed for high-temperature processing and curing. It features excellent winding impregnation properties, high thermal endurance, strong thermal shock resistance, and reliable dielectric performance. Additionally, it meets UL 94 V-0 flammability requirements at 6 mm, making it suitable for demanding electrical insulation applications.
Transformers
Filters
Capacitors
Other high-temperature electrical insulation uses requiring Class F performance
| Property | Araldite® CW 5730 N (Resin) | Aradur® HY 5731 (Hardener) | Mixed System (Cured) |
|---|---|---|---|
| Appearance | Black paste | Brown liquid | Black solid |
| Viscosity (25°C) | 65–120 Pa·s | 500–900 mPa·s | 7000 mPa·s (25°C); 2000 mPa·s (40°C); 650 mPa·s (60°C); 360 mPa·s (80°C) |
| Specific Gravity | 1.84 g/cm³ | 1.0 g/cm³ | 1.59 g/cm³ |
| Mix Ratio (pbw) | 100 | 28 | — |
| Pot Life | — | — | 380 min (60°C); 115 min (80°C) |
| Gel Time | — | — | 145 min (80°C); 36 min (100°C); 10–14 min (120°C) |
| Curing Cycle | — | — | 3 h at 80°C + 6 h at 100°C |
| Glass Transition Temp. | — | — | 25 °C |
| Tensile Strength | — | — | 5.6 MPa |
| Elongation at Break | — | — | 45 % |
| Flexural Strength | — | — | 6 MPa |
| Hardness | — | — | Shore D 60–75 |
| Thermal Conductivity | — | — | 0.61 W/mK |
| Flammability | — | — | UL 94 V-0 (6 mm) |
| Dielectric Strength | — | — | 28 kV/mm |
| Dielectric Constant (50 Hz, 25°C) | — | — | 4.9 |
| Volume Resistivity | — | — | 10¹⁴ Ω·cm |
| Water Absorption | — | — | 0.43% (23°C, 10 days) / 0.27% (100°C, 30 min) |
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