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 4236 / W 4236
• Manufacturer: ELANTAS Beck India Ltd.
• Technologies: Two-component filled epoxy system, thermal class H, high thermal conductivity, UL 94 V-0, RoHS compliant
• Color: Resin – Black filled; Hardener – Colorless to pale yellow
• Cure Type: Room temperature or 50°C post-curing
• Package Size: Resin: 6 kg metal container & 15 kg plastic container; Hardener: 5 kg polyethylene container
• Shelf Life: 12 months
Type: Two-component, filled, epoxy potting compound.
Features: Self-extinguishing, thermal class H (180°C), high thermal conductivity, good electrical & mechanical properties.
Certifications: UL 94 V-0 listed (File E143115, E116643), RoHS compliant (2002/95/EC).
Form: Resin (black, filled) + Hardener (amine, colorless to pale yellow liquid).
Encapsulation, sealing, and impregnation of electrical and electronic components.
Suitable for manual/automatic casting, especially under vacuum with mixing/dispensing devices.
Cures at room temperature or elevated temperature (recommended curing cycle: 24 h at 25°C or 6 h at 50°C).
| Property | Resin (MC 4236) | Hardener (W 4236) |
|---|---|---|
| Colour & Appearance | Black, filled resin | Colorless to pale yellow liquid |
| Type of compound | Epoxy resin | Amine |
| Viscosity | 15,000 – 25,000 mPa·s (50°C) | 35 – 55 mPa·s (25°C) |
| Density | 1.79 – 1.83 g/ml (25°C) | 0.97 – 1.01 g/ml (25°C) |
| Storage stability | 12 months (sealed, RT) | 12 months (sealed, RT) |
| Property | Value / Range |
|---|---|
| Mixing ratio (by weight) | 100 : 8 |
| Mixing ratio (by volume) | 100 : 15 |
| Initial viscosity at 25°C | 4,000 – 6,500 mPa·s |
| Initial viscosity at 40°C | 2,500 – 4,000 mPa·s |
| Initial viscosity at 60°C | 1,200 – 1,800 mPa·s |
| Pot life (40°C) | 20 – 30 min |
| Pot life (60°C) | 10 – 15 min |
| Gel time at 25°C | 3 – 4 h |
| Gel time at 50°C | 30 – 40 min |
| Demoulding time at 25°C | 10 – 12 h |
| Recommended curing cycle | 24 h at 25°C or 6 h at 50°C |
| Property | Value / Range |
|---|---|
| Surface | Bright |
| Density (25°C) | 1.70 – 1.74 g/ml |
| Hardness (Shore D) | 83 – 87 |
| Glass transition (Tg) | 40 – 50 °C |
| Thermal expansion (Tg -10°C) | 25 – 35 ×10⁻⁶/°C |
| Thermal expansion (Tg +10°C) | 105 – 125 ×10⁻⁶/°C |
| Flammability | UL 94 V-0 (3.2 mm) |
| Thermal conductivity | 0.85 – 0.95 W/m·K |
| Flexural strength | 40 – 50 MPa |
| Flexural modulus | 5,000 – 6,000 MPa |
| Strain at break (flexural) | 1.0 – 1.5 % |
| Tensile strength | 25 – 35 MPa |
| Elongation at break | 0.8 – 1.6 % |
| Property | Value / Range |
|---|---|
| Dielectric strength (2 mm, RT) | 18 – 20 kV/mm |
| Volume resistivity (RT) | 1 × 10¹⁵ – 8 × 10¹⁵ Ω·cm |
| Dielectric constant (250 V/50 Hz, RT) | 3.4 – 4.5 |
| Dissipation factor (250 V/50 Hz, RT) | 0.035 – 0.045 |
| Tracking resistance (CTI, RT) | >600 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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