Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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| Property | Resin | Hardener |
|---|---|---|
| Specific Gravity @ 25°C | 1.12 – 1.18 | 0.94 – 1.1 |
| Viscosity (Brookfield, RVT, 25°C) | 30,000 – 90,000 cP (2.5 rpm) / 60,000 – 100,000 cP (5 rpm) | 9,000 – 19,000 cP (5 rpm) / 11,000 – 19,000 cP (10 rpm) |
| Property | Value |
|---|---|
| Pot Life (200g mass @ 25°C) | 30 – 150 min |
| Fixture Time (0.1 N/mm² shear strength) @ 22°C | 4 hours |
| Full Cure Time @ 25°C | 36 hours |
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion (K⁻¹) | 45×10⁻⁶ (16.8 – 40°C) / 173×10⁻⁶ (55.4 – 199.4°C) |
| Thermal Conductivity (W/m-K) | 0.28 |
| Shore Hardness (D) | 70 – 80 |
| Glass Transition Temperature (°C) | 55 |
| Elongation (%) | 6 |
| Tensile Strength (N/mm²) | 28 (4,000 psi) |
| Tensile Modulus (N/mm²) | 965 (140,000 psi) |
| Compressive Strength (N/mm²) | 69 (10,000 psi) |
| Property | Value |
|---|---|
| Volume Resistivity (Ω·cm) | 1×10¹⁵ |
| Surface Resistivity (Ω) | 4×10¹⁵ |
| Dielectric Constant / Dissipation Factor | 4.3 / 0.04 (1 kHz) |
| Substrate | Strength (N/mm²) | Strength (psi) |
|---|---|---|
| Steel (grit blasted) | 20 – 25 | 2,900 – 3,600 |
| Stainless Steel | 9 – 12 | 1,300 – 1,740 |
| Zinc Dichromate | 7 – 12 | 1,000 – 1,700 |
| Aluminum (abraded) | 8 – 12 | 1,200 – 1,700 |
| Aluminum (etched) | 12 – 16 | 1,700 – 2,300 |
| Galvanized Steel | 9.4 | 1,400 |
| Brass | 8 – 11 | 1,200 – 1,600 |
| GRP | 0.5 – 2 | 70 – 290 |
| Phenolic | 2.5 – 4.5 | 360 – 650 |
| ABS | 0.5 – 1 | 70 – 150 |
| Hardwood (Mahogany) | 6 – 15 | 870 – 2,200 |
| Softwood (Red Deal) | 8 – 10 | 1,200 – 1,500 |
| Polycarbonate | 2.5 – 4 | 360 – 580 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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