• Item Name: Araldite® CW 2245 / Aradur® HY 842
• Manufacturer: Huntsman Advanced Materials
• Technologies: Modified solvent-free epoxy resin with inorganic filler + low-viscosity polyamidoamine hardener
• Color: Resin – white or black viscous liquid; Hardener – clear yellow-brown liquid
• Cure Type: 24 hours at room temperature + 6 hours at 60 °C
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
Araldite® CW 2245 with Aradur® HY 842 is an optimally filled epoxy casting system for processing and curing at slightly elevated temperatures. It produces flexible castings with low viscosity and demonstrates good resistance to thermal shock. Designed for inductive components, it offers balanced dielectric and mechanical performance suitable for electrical applications.
Inductive components (coils, transformers, chokes)
Encapsulation and vacuum casting
Electrical insulation requiring moderate flexibility and shock resistance
| Property | Araldite® CW 2245 (Resin) | Aradur® HY 842 (Hardener) | Mixed System (Cured) |
|---|---|---|---|
| Appearance | White or black, viscous liquid (filled) | Clear yellow-brown liquid | Solid, filled casting |
| Viscosity (25°C) | 12,000–24,000 mPa·s | 400–700 mPa·s | ~3,700 mPa·s (25°C); ~1,700 mPa·s (40°C) |
| Specific Gravity | 1.62–1.68 g/cm³ | 0.96 g/cm³ | 1.59 g/cm³ |
| Mix Ratio (pbw) | 100 | 18 | — |
| Pot Life | — | — | ~60 min at 40°C (to 15,000 mPa·s) |
| Gel Time | — | — | 180 min (25°C); 100 min (40°C); 35 min (60°C) |
| Curing Cycle | — | — | 24 h at RT + 6 h at 60°C |
| Glass Transition Temp. | — | — | 47 °C |
| Tensile Strength | — | — | 17 MPa |
| Elongation at Break | — | — | 7 % |
| Tensile Modulus | — | — | 1100 MPa |
| Modulus in Torsion (G’) | — | — | 1100 MPa |
| Hardness | — | — | Shore D 75 |
| Thermal Conductivity | — | — | 0.6 W/mK |
| Water Absorption | — | — | 0.19% (1 day, 23°C); 0.62% (10 days); 0.26% (30 min, 100°C) |
| Dielectric Strength | — | — | 24 kV/mm (2 mm specimen) |
| Dielectric Constant (50 Hz, 25°C) | — | — | 5.2 |
| Dielectric Loss Factor (tan δ) | — | — | 6.2 % |
| Volume Resistivity | — | — | 10¹⁴ Ω·cm |
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