Applications

Araldite® CW 229 CI / Aradur® HW 229 CI – Epoxy Casting System – Electrical insulation for indoor medium and high voltage applications

  • Item Name: Araldite® CW 229 CI / Aradur® HW 229 CI
  • Manufacturer: Huntsman Advanced Materials
  • Technologies: Two-component heat curing epoxy casting system with mechanically reinforcing fillers, designed for electrical insulation and high thermal endurance (up to 200°C applications)
  • Color: Beige
  • Cure Type: Heat curing
  • Package Size: Contact to Avantek for details.
  • Shelf Life: 1 year

1. Product Overview

Araldite® CW 229 CI Resin and Aradur® HW 229 CI Hardener form a two-component, heat-curing epoxy casting system containing mechanically reinforcing fillers. This system provides excellent mechanical and electrical properties, high fracture toughness, and outstanding thermal endurance for applications up to 200°C. It is suitable for rapid gelation at mold temperatures of 140°C and above.

2. Applications

  • Manufacturing of electrically insulating components
  • Electrical insulation for medium and high voltage applications
  • SF6-insulated electrical components
  • Applications requiring resistance to thermal cycling

3. Typical Properties

Before Mixing (Individual Components)

Property Araldite® CW 229 CI Resin Aradur® HW 229 CI Hardener
Appearance Beige Viscous Liquid Beige Viscous Liquid
Density (g/cm³) 1.76 – 1.83 1.90 – 1.98
Viscosity @ 25ºC (cP) 80,000 – 200,000 25,000 – 75,000
Flash Point (°C) 135 140

After Mixing (Cured Properties)

Property Value
Mixed Viscosity @ 25°C (cP) 35,000 – 65,000
Density (g/cm³) 1.80 – 1.85
Gel Time @ 130°C (min) 13 – 15
Gel Time @ 150°C (min) 8 – 9
Tensile Strength (psi) 11,000 – 12,500
Elongation at Break (%) 0.80 – 1.20
Tensile Modulus (psi) 1.50 – 1.55 × 10⁶
Flexural Strength (psi) 18,000 – 19,000
Flexural Modulus (psi) 1.40 – 1.50 × 10⁶
Hardness (Shore D) 92 – 96
Glass Transition Temperature (°C) 110 – 120
Thermal Conductivity (W/m∙K) 0.7 – 0.8
Dielectric Strength (V/mil @ 3 mm) 420 – 480

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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