Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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LOCTITE® EA 9492 is a two-component epoxy adhesive with high temperature resistance, excellent solvent resistance, and very low outgassing properties. It is a lower viscosity version of LOCTITE® EA 9491, designed for bonding and repairing various materials while maintaining superior mechanical, electrical, and impact resistance.
| Property | Resin | Hardener | Mixed |
|---|---|---|---|
| Appearance | White opaque paste | Grey opaque liquid | White opaque paste |
| Specific Gravity @ 25°C | 1.51 | 1.52 | – |
| Viscosity (mPa·s) | 50,000 – 120,000 (Brookfield RVT, 25°C) | 20,000 – 50,000 (Brookfield RVT, 25°C) | – |
| Mix Ratio (by weight) | 2:1 | – | – |
| Mix Ratio (by volume) | 100:50 | – | – |
| Pot Life (100g @ 22°C) | – | – | 15 min |
| Fixture Time (@ 22°C) | – | – | 75 min |
| Full Cure Time | – | – | 3 days at room temperature (can be accelerated with heat) |
| Property | Value |
|---|---|
| Shore Hardness (D) | 80 |
| Tensile Strength (N/mm²) | 31 (4,500 psi) |
| Tensile Modulus (N/mm²) | 6,700 (970,000 psi) |
| Compressive Strength (N/mm²) | 80 (12,000 psi) |
| Coefficient of Thermal Expansion (K⁻¹) | 63×10⁻⁶ |
| Thermal Conductivity (W/m·K) | 0.3 |
| Dielectric Breakdown Strength (kV/mm) | 17.5 |
| Dielectric Constant (1 kHz) | 6.1 |
| Dissipation Factor (1 kHz) | 0.09 |
| Substrate | Strength (N/mm²) | Strength (psi) |
|---|---|---|
| Mild Steel (grit blasted) | 20 | 2,900 |
| Aluminum (abraded) | 14 | 2,000 |
| Aluminum (acid etched) | 15 | 2,200 |
| Stainless Steel | 12 | 1,700 |
| Brass | 1 | 150 |
| Galvanized Steel | 2.2 | 320 |
| Zinc Dichromate | 6 | 870 |
| Polycarbonate | 5.3 | 770 |
| ABS | 3 | 440 |
| GRP (Polyester Resin Matrix) | 5 | 730 |
| PVC | 1.9 | 280 |
| Glass Fiber Reinforced Epoxy | 7 | 1,000 |
| Condition | 500h | 1000h | 3000h |
|---|---|---|---|
| Motor Oil | 115% | 115% | 115% |
| Unleaded Gasoline | 115% | 115% | 115% |
| 50% Water Glycol (87°C) | 130% | 110% | 105% |
| 4% Sodium Hydroxide | 125% | 110% | 115% |
| Water (60°C) | 130% | 120% | 120% |
| Acetone | 80% | 70% | 65% |
| Acetic Acid (10%) | 105% | 95% | 95% |
| 7.5% Saltwater | 105% | 100% | 100% |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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