Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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LOCTITE® EA 9497™ is a two-component, room temperature curing epoxy adhesive with high thermal conductivity and high compressive strength. It is ideal for heat dissipation applications and demanding hot-strength conditions.
| Property | Resin | Hardener |
|---|---|---|
| Specific Gravity @ 25°C | 2.05 – 2.13 | 2.02 – 2.1 |
| Viscosity (Pa⋅s, @ 25°C) | 5 – 16 | 8 – 24 |
| Property | Value |
| Pot Life @ 25°C (267g resin / 133g hardener) | 165 – 255 min |
| Property | Value |
| Coefficient of Thermal Conductivity (W/m-K) | 1.4 |
| Coefficient of Thermal Expansion (K-1) | Below Tg: 50×10⁻⁶, Above Tg: 104×10⁻⁶ |
| Linear Shrinkage (%) | 0.73 |
| Tensile Strength (N/mm², psi) | 52.6 (7,640) |
| Tensile Modulus (N/mm², psi) | 2,420 (351,000) |
| Compressive Strength (N/mm², psi) | 112.5 (16,300) |
| Elongation (%) | 2.9 |
| Shore Hardness (Durometer D) | 83 |
| Glass Transition Temperature (°C) | 67 (Room Temp. Cure), 97 (Cured 24h @ 22°C + 30min @ 80°C), 116 (Cured 24h @ 22°C + 15min @ 120°C) |
| Property | Value |
| Dielectric Constant / Dissipation Factor (IEC 60250) | 1 kHz: 5.5 / 0.038, 1 MHz: 5.0 / 0.001, 10 MHz: 2.5 / 0.983 |
| Volume Resistivity (Ω⋅cm) | 41×10¹⁵ |
| Surface Resistivity (Ω) | 75×10¹⁵ |
| Substrate | Strength (N/mm², psi) |
| Mild Steel (grit blasted) | 20 (2,900) |
| Stainless Steel | 9 (1,300) |
| Aluminum | 7 (1,000) |
| Aluminum (abraded) | 15 (2,170) |
| Brass | 5 (750) |
| Copper | 5 (750) |
| Zinc Dichromate | 5 (750) |
| ABS | 6 (900) |
| Polycarbonate | 4 (700) |
| PMMA | 1 (150) |
| Glass Fiber Reinforced Epoxy | 8 (1,200) |
| Hardwood (Teak) | 12 (1,700) |
| Softwood (Deal) | 8 (1,200) |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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