Applications

Araldite® CW 30334 CI / Aradur® HW 30335 CI – Epoxy Casting System – Encapsulation of motor stators, transformer coils

  • Item Name: Araldite® CW 30334 CI / Aradur® HW 30335 CI
  • Manufacturer: Huntsman Advanced Materials
  • Technologies: Hot-curing two-component epoxy casting system with high thermal conductivity, excellent thermal shock (–40℃/180℃) crack resistance, and good gap filling performance
  • Color: Resin – Viscous black liquid; Hardener – Viscous white liquid
  • Cure Type: Hot-curing (minimum curing temperature 120–130 °C)
  • Package Size: Contact to Avantek for details.
  • Shelf Life: Contact to Avantek for details.

1. Product Overview Araldite® CW 30334 CI Resin and Aradur® HW 30335 CI Hardener form a liquid, prefilled, hot-curing two-component epoxy casting system. This system offers high thermal conductivity and excellent thermal shock resistance (-40℃ to 180℃), making it suitable for encapsulation applications.

2. Applications

  • Encapsulation of motor stators and transformer coils
  • Devices requiring high thermal conductivity
  • Components needing superior thermal shock crack resistance
  • Processing methods: Vacuum casting, Vacuum potting

3. Typical Properties

Property Test Method Araldite® CW 30334 CI Resin Aradur® HW 30335 CI Hardener
Appearance Visual Viscous black liquid Viscous white liquid
Viscosity at 60℃ (mPa.s) ISO 3219 2000 – 6000 1500 – 5500
Density at 25℃ (g/cm³) ISO 2811-2 2.20 – 2.30 2.10 – 2.20

Mixed Properties

Property Test Method Value
Mixing Viscosity at 60℃ (mPa.s) ISO 3219 3000 – 5000
Mixing Viscosity at 80℃ (mPa.s) ISO 3219 1200 – 1800
Pot Life at 80℃ (min) Brookfield 210
Tensile Strength (MPa) ISO 527 65 – 80
Elongation at Break (%) ISO 527 0.5 – 0.8
E-Modulus from Tensile Test (MPa) ISO 527 15000 – 18000
Flexural Strength (MPa) ISO 178 100 – 130
E-Modulus from Flexural Test (MPa) ISO 178 15000 – 18000
Glass Transition Temperature (℃) IEC 1006 90 – 105
Thermal Conductivity (W/mK) ISO 8894-1 1.1 – 1.2
Density of Cured Sample (g/cm³) DIN 55990 2.24
Breakdown Strength (kV/mm) IEC 60243-1 20 – 26
Volume Resistivity (Ω.cm) IEC 62631 1.55 * 10^15
Tracking Resistance (CTI) IEC 60112 > 600

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