Item Name: Araldite® CW 30334 CI Resin / Aradur® HW 30335 CI Hardener
Manufacturer: Huntsman Advanced Materials
Technologies: Mineral-filled two-component epoxy system
Color: Resin – Black, Hardener – White, Cured – Grey
Cure Type: Hot-curing (minimum 120–130°C)
Package Size: Contact to Techniq VN for details.
Shelf Life: Contact to Techniq VN for details.
Araldite® CW 30334 CI Resin with Aradur® HW 30335 CI Hardener is a liquid, prefilled, hot-curing, two-component epoxy casting system. It offers high thermal conductivity, excellent thermal shock resistance (-40 ℃ to 180 ℃), strong gap filling, and outstanding electrical/mechanical performance. The system is particularly resistant to Automatic Transmission Fluid (ATF) and designed for long-term durability.
Encapsulation of motor stators
Encapsulation of transformer coils
Encapsulation of devices requiring high thermal conductivity and thermal shock crack resistance
Processing methods: Vacuum casting, Vacuum potting.
| Component | Appearance | Viscosity (60 ℃, mPa·s) | Density (25 ℃, g/cm³) |
|---|---|---|---|
| CW 30334 CI Resin | Viscous black liquid | 2000 – 6000 | 2.20 – 2.30 |
| HW 30335 CI Hardener | Viscous white liquid | 1500 – 5500 | 2.10 – 2.20 |
Mixing ratio:
By weight → Resin 100 : Hardener 75
By volume → Resin 100 : Hardener 78
| Property | Condition | Value |
|---|---|---|
| Mixing viscosity | 60 ℃ | 3000 – 5000 mPa·s |
| Mixing viscosity | 80 ℃ | 1200 – 1800 mPa·s |
| Pot life | 80 ℃ | ~210 min (time to 10,000 mPa·s) |
| Minimum curing temperature | — | 120 – 130 ℃ |
| Property | Standard/Test | Value |
|---|---|---|
| Color | Visual | Grey |
| Tensile strength | ISO 527 | 65 – 80 MPa |
| Elongation at break | ISO 527 | 0.5 – 0.8 % |
| Tensile modulus | ISO 527 | 15,000 – 18,000 MPa |
| Flexural strength | ISO 178 | 100 – 130 MPa |
| Flexural modulus | ISO 178 | 15,000 – 18,000 MPa |
| Surface strain | ISO 178 | 0.5 – 1.0 % |
| Critical stress intensity factor (K1c) | CG 216-0/89 | 2.9 – 3.2 MPa·m1/2 |
| Specific energy at break (G1c) | CG 216-0/89 | 470 – 570 J/m² |
| Glass transition temperature (Tg) | IEC 1006 | 90 – 105 ℃ |
| Coefficient of thermal expansion (below Tg) | ISO 11359-2 | 22 – 26 ppm/K |
| Hardness | Shore D (ISO 868) | 85 |
| Thermal conductivity | ISO 8894-1 | 1.1 – 1.2 W/m·K |
| Density of cured sample | DIN 55990 | 2.24 g/cm³ |
| Water absorption (25 ℃, 7d) | ISO 62 | 0.07 – 0.10 % |
| Water absorption (100 ℃, 120min) | ISO 62 | 0.05 – 0.07 % |
| Dielectric breakdown strength (2mm) | IEC 60243-1 | 20 – 26 kV/mm |
| Volume resistivity | IEC 62631 | 1.55 × 10¹⁵ Ω·cm |
| Tracking resistance (CTI) | IEC 60112 (solution A) | > 600 |
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