Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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• Item Name: Epoxylite® 235SG
• Manufacturer: Contact to Techniq VN for details.
• Technologies: Two-component epoxy resin
• Color: Resin – Clear Amber, Hardener – Pale Yellow, Mixture – Clear Amber
• Cure Type: Heat cure (60ºC to 130ºC)
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 12 months
Epoxylite® 235SG is a two-component epoxy trickle impregnation resin designed for Class H temperature applications (up to 180°C). It cures rapidly to form a tough, resilient material with excellent thermal stability and long-term chemical resistance. The system ensures reliable performance for rotor and stator windings, providing durability in hermetic and high-temperature environments. Components should be stored in tightly sealed containers below 25°C, with a minimum shelf life of 12 months.
Trickle impregnation and sealing of rotor and stator windings
High-temperature electrical insulation (Class H)
Hermetic applications requiring chemical and thermal stability
Suitable for rapid processing in industrial impregnation systems
Before Mixing
| Property | Value | Unit |
|---|---|---|
| Resin appearance | Clear Amber | – |
| Hardener appearance | Pale Yellow | – |
| Mixture appearance | Clear Amber | – |
| Resin viscosity (25°C) | 2,500 | mPas |
| Hardener viscosity (25°C) | 300 | mPas |
| Mixture viscosity (25°C) | 1,650 | mPas |
| Resin density (25°C) | 1.15 | g/cm³ |
| Hardener density (25°C) | 1.02 | g/cm³ |
| Mixture density (25°C) | 1.13 | g/cm³ |
| Mix ratio (weight) | 5:1 | Resin:Hardener |
| Mix ratio (volume) | 4.3:1 | Resin:Hardener |
| Gelation time (25°C) | 35 | min |
| Flash point | >200 | °C |
After Curing
| Property | Value | Unit |
|---|---|---|
| Thermal class (ASTM D2307 / 20,000 h) | 180 | °C |
| Shore D hardness (25°C, DIN 53505) | 90 | – |
| Glass transition temperature (IEC 1006) | 105 | °C |
| Tensile strength (ISO 527) | 75 | N/mm² |
| Elongation at break (ISO 527) | 5 | % |
| Thermal expansion coefficient (DIN 53752) | 50 | 10^-6 K^-1 |
| Thermal conductivity (ISO 8894-1) | 0.26 | W/mK |
| Water absorption (ISO 62, 23°C) | 0.20 | % |
| Dielectric strength (IEC 243-1) | 280 | kV/cm |
| Dielectric constant (IEC 250, 50Hz) | 4.0 | – |
| Dissipation factor (IEC 250, 20°C) | 3 | % |
| Volume resistivity (IEC 93) | >10^13 | Ω·cm |
| Comparative tracking index (IEC 112) | >550 | V |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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