• Item Name: Araldite® CW 2122-1 Resin / Aradur® HY 2123 Hardener
• Manufacturer: Huntsman Advanced Materials
• Technologies: Filled, modified epoxy casting system with anhydride hardener, heat-curing
• Color: Resin – red-brown viscous liquid, Hardener – clear yellow-brown liquid
• Cure Type: Heat curing (standard: 3 h at 80°C + 2 h at 110°C)
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 12 months
Araldite® CW 2122-1 used with Aradur® HY 2123 is a filled epoxy casting resin system designed for high-temperature curing. It provides excellent impregnation capability, strong dielectric performance, good thermal shock resistance, and reliable mechanical properties. The cured material is flame-retardant (UL 94 V-0 at 1.5 mm) and suitable for demanding insulation applications.
This system is widely applied in the manufacture of electrical components such as transformers and capacitors. It is suitable for casting and vacuum casting processes where high thermal stability, electrical insulation, and flame resistance are required.
The resin-hardener system delivers stable processing with moderate viscosity, controlled gel time, and reliable curing cycles. When cured, it achieves strong mechanical strength, thermal stability in Class H, and robust electrical insulation. With good thermal conductivity, low water absorption, and resistance to tracking, it is a reliable material for electrical insulation systems exposed to heat and mechanical stress.
| Property | Araldite® CW 2122-1 (Unmixed) | Aradur® HY 2123 (Unmixed) | Mixed / Cured System |
|---|---|---|---|
| Appearance | Red-brown viscous liquid | Clear yellow-brown liquid | Red-brown casting |
| Specific Gravity (g/cm³) | 1.64 – 1.70 | 1.20 | 1.54 |
| Viscosity at 25°C | 20 – 40 Pa·s | 50 – 100 mPa·s | — |
| Mix Ratio (by weight) | 100 | 34 | — |
| Mix Ratio (by volume) | 100 | 48 | — |
| Mix Viscosity at 80°C (mPa·s) | — | — | 450 |
| Gel Time at 100°C (min) | — | — | 23 – 28 |
| Pot Life at 80°C (min) | — | — | 110 |
| Cure Cycle (standard) | — | — | 3 h at 80°C + 2 h at 110°C |
| Tensile Strength (MPa) | — | — | 58 |
| Tensile Modulus (MPa) | — | — | 6180 |
| Flexural Strength (MPa) | — | — | 94 |
| Flexural Modulus (MPa) | — | — | 6270 |
| Elongation at Break (%) | — | — | 1.2 |
| Impact Strength (kJ/m²) | — | — | 8 |
| Glass Transition Temperature (°C) | — | — | 110 – 120 |
| Thermal Conductivity (W/m·K) | — | — | 0.51 |
| Dielectric Strength (kV/mm) | — | — | 33 |
| Volume Resistivity (Ω·cm) | — | — | 10¹⁵ |
| Tracking Resistance (CTI grade) | — | — | > 600 |
| Flammability (UL 94, 1.5 mm) | — | — | V-0 |
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