Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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Item Name: Elan-tron® MC 5430/W 5868
Manufacturer: ELANTAS Camattini S.p.A.
Technologies: Filled two-component epoxy resin system, RoHS compliant, Class H (180°C) thermal resistance
Color: Resin – Beige, Hardener – Brown
Cure Type: Room temperature curing with optional post-cure for optimal properties
Package Size: Contact to Techniq VN for details.
Shelf Life: Resin 12–24 months, Hardener 12–24 months
Elan-tron® MC 5430/W 5868 is a two-component, room-temperature curing epoxy resin system, consisting of Rhenatech EP 5430 resin and W 5868 hardener. The filled, solvent-free system exhibits excellent adhesion, high thermal resistance (Class H, 180 °C), and strong electrical and mechanical properties. It is RoHS compliant and suitable for manual or vacuum casting. Post-curing optimizes electrical and mechanical performance while avoiding abrupt temperature changes. Components should be stored sealed in cool, dry conditions to prevent moisture sensitivity and filler settling.
Impregnation and coating of rotors, interpole coils, and field coils.
Casting between winding bars.
Production of magnets and motors subjected to continuous, high-stress operation.
The system provides stable processing with a predictable pot life and curing profile. The mixed epoxy demonstrates moderate initial viscosity and manageable gel times. Once cured, it achieves good hardness, glass transition temperature, and thermal conductivity. Water absorption is low, and it exhibits strong electrical insulation, mechanical strength, and dimensional stability. The system is suited for high-temperature electrical applications, offering resistance to thermal, mechanical, and electrical stress.
| Property | Still Not Mixed (Resin/Hardener) | After Mixed / Cured |
|---|---|---|
| Mixing ratio (weight) | 100:25 | – |
| Mixing ratio (volume) | 100:37 | – |
| Resin viscosity (25 °C) | 15,000–25,000 mPas | 3,000–5,000 mPas (25 °C); 2,500–4,000 mPas (40 °C) |
| Hardener viscosity (25 °C) | 1,800–2,800 mPas | 900–1,500 mPas |
| Resin density (25 °C) | 2.05–2.15 g/ml | – |
| Hardener density (25 °C) | 1.37–1.47 g/ml | – |
| Gel time | 60–70 min (40 °C); 32–42 min (50 °C) | 4–5 h (25 °C) |
| Pot life (viscosity doubling) | – | 60–80 min (25 °C); 40–50 min (40 °C) |
| Demolding time | – | 7–9 h (25 °C) |
| Cured density | – | 1.93–1.98 g/ml |
| Hardness | – | 70–80 Shore D |
| Glass transition temperature | – | 48–56 °C |
| Thermal conductivity | – | 0.45–0.55 W/(m·K) |
| Dielectric constant | – | 4.0–5.0 |
| Dielectric loss factor | – | 65–85×10⁻³ |
| Volume resistivity | – | 3×10¹⁴–5×10¹⁴ Ω·cm |
| Dielectric strength | – | 20–22 kV/mm |
| Flexural strength | – | 35–45 MPa |
| Max flexural strain | – | 2.0–3.0 % |
| Elastic modulus | – | 1,800–2,400 MPa |
| Tensile strength | – | 19–23 MPa |
| Elongation at break | – | 1.2–2.2 % |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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