• Item Name: ARALDITE® GY 282 / ARADUR® HY 918 / ACCELERATOR DY 073-1
• Manufacturer: Huntsman
• Technologies: Bisphenol A & F Type Epoxy
• Color: Contact to Techniq VN for details.
• Cure Type: Heat Cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
ARALDITE® GY 282 / ARADUR® HY 918 / ACCELERATOR DY 073-1 is a bisphenol A/F type epoxy-based impregnating resin system designed for magnetic and motor coils. It offers excellent electrical and mechanical properties, low viscosity for easy impregnation, and a long pot life, making it ideal for vacuum pressure impregnation (VPI) processes in high-performance electrical applications.
Impregnation of magnetic coils
Impregnation of motor coils
Large coils for magnets and rotating machines
Suitable for vacuum pressure impregnation (VPI) processing
| Property | Before Mixing | After Mixing / Cured |
|---|---|---|
| Physical form | Liquid | – |
| Glass transition temperature (°C) | – | 95 – 100 |
| Tensile strength (MPa) | – | 88 – 91 |
| Elongation at tensile strength (%) | – | 5.0 – 6.0 |
| Ultimate tensile strength (MPa) | – | 87 – 94 |
| Ultimate elongation (%) | – | 5.5 – 6.5 |
| Tensile modulus (MPa) | – | 3,100 – 3,200 |
| Flexural strength at 23°C (MPa) | – | 150 – 162 |
| Elongation at flexural strength (%) | – | 6.5 – 7.0 |
| Ultimate flexural strength (MPa) | – | 148 – 155 |
| Ultimate flexural elongation (%) | – | 6.5 – 8.0 |
| Flexural modulus (MPa) | – | 3,050 – 3,200 |
| Fracture toughness K1C (MPa√m) | – | 0.57 – 0.60 |
| Fracture energy G1C (J/m²) | – | 110 – 120 |
| Water absorption after 1d at 23°C (%) | – | 0.10 – 0.15 |
| Water absorption after 10d at 23°C (%) | – | 0.35 – 0.40 |
| Water absorption after 60min at 100°C (%) | – | 0.20 – 0.25 |
| Breakdown strength (kV/mm) | – | 20 – 25 |
| Tracking resistance (CTI) | – | > 600 |
| Electrolytic corrosion | – | A1 grade |
Standard Cure Cycle: 4 h at 80°C + 4 h at 120°C (for mechanical/electrical properties)
Mix Ratios (W%): Hardener : Resin = 0.82, Accelerator : Resin = 0.0025
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