Applications

Araldite® CW 1304 / Aradur® HY 1300 – Advanced Materials – Inductive components, transformers, generators, motors, encapsulating metal and ceramic inserts

  • Item Name: Araldite® CW 1304 / Aradur® HY 1300
  • Manufacturer: Huntsman Advanced Materials
  • Technologies: Epoxy casting system for room temperature or slightly elevated curing
  • Color: Grey (CW 1304), Clear yellowish (HY 1300)
  • Cure Type: Room temperature (RT) or elevated temperature curing
  • Package Size: Contact to Avantek for details.
  • Shelf Life: Contact to Avantek for details.

1. Product Overview

Araldite® CW 1304 / Aradur® HY 1300 is an optimally filled epoxy casting system designed for processing and curing at room temperature or slightly higher temperatures. It provides a low expansion coefficient, good thermal endurance, and excellent crack resistance.

2. Applications

  • Inductive components (e.g., transformers, generators, and motors)
  • Encapsulation of metal and ceramic inserts

3. Typical Properties

A. Individual Components (Before Mixing)

Property Araldite® CW 1304 (Epoxy Resin) Aradur® HY 1300 (Hardener)
Viscosity at 25°C 165 – 225 Pa·s 150 – 190 mPa·s
Specific Gravity 1.82 – 1.88 g/cm³ 0.990 – 1.005 g/cm³
Appearance Grey, high-viscosity mass Clear, yellowish liquid

B. Mixed System Properties

Property Value Test Standard
Mix Viscosity at 25°C 18,000 mPa·s Rheomat
Mix Viscosity at 40°C 6,000 mPa·s Rheomat
Gel Time at 25°C 70 min Gelnorm
Gel Time at 60°C 22 min ISO 9396
Pot Life at 40°C 21 min Rheomat
Standard Cure Cycle 24h at RT + 6h at 60°C
Minimum Cure Cycle 48h at 25°C or 2h at 60°C

C. Mechanical & Physical Properties (After Curing – 24h at RT + 6h at 60°C)

Property Value Test Standard
Glass Transition Temperature (Tg) 77°C ISO 6721
Tensile Modulus 9,700 MPa ISO 527
Tensile Strength 71 MPa ISO 527
Elongation at Break 1% ISO 527
Flexural Strength 105 MPa ISO 178
Thermal Linear Coefficient (Alpha 1 / Alpha 2) 35 ppm/K / 100 ppm/K ISO 11359-2
Thermal Conductivity 0.64 W/mK ISO 8894-1
Hardness Shore D 89 DIN 53505

D. Electrical Properties (After Curing – 24h at RT + 6h at 60°C)

Property Value Test Standard
Dielectric Strength (2 mm Specimen) 15 kV/mm IEC 60243-1
Dielectric Loss Factor (tan δ, 50Hz, 25°C) 1.2% IEC 60250
Dielectric Constant (εr, 50Hz, 25°C) 4.8 IEC 60250
Volume Resistivity (ρ, 25°C) 10¹⁴ Ω·cm IEC 60093

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