Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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LOCTITE® EA 9483 is a low-viscosity, two-part epoxy adhesive designed for bonding and potting applications requiring optical clarity and high strength. It cures at room temperature and forms an ultra-clear bondline with minimal shrinkage.
Technology: Epoxy
Chemical Type: Resin: Epoxy, Hardener: Amine
Components: Two-part (Resin & Hardener)
Mix Ratio: 2:1 (by volume), 100:46 (by weight)
Cure Method: Room temperature cure
Maximum Gap: 0.25 mm
| Property | Resin | Hardener | Mixture |
|---|---|---|---|
| Appearance | Colorless Liquid | Colorless Liquid | Ultra-clear Paste |
| Specific Gravity @ 25°C | 1.13 – 1.18 | 1.05 – 1.11 | – |
| Viscosity (mPa·s) | 5,000 – 12,000 | 1,000 – 3,000 | 3,000 – 11,000 |
| Pot Life @ 22°C (100g mass) | – | – | 25 – 60 min |
| Property | Value |
| Coefficient of Thermal Expansion (K-1) | 50×10⁻⁶ (20-45°C), 164×10⁻⁶ (55-200°C) |
| Thermal Conductivity (W/m-K) | 0.3 |
| Shore Hardness (Durometer D) | 65 |
| Glass Transition Temperature (Tg) (°C) | 61 |
| Elongation (%) | 3.2 |
| Tensile Strength (N/mm²) | 47 (6,800 psi) |
| Tensile Modulus (N/mm²) | 2,100 (300,000 psi) |
| Compressive Strength (N/mm²) | 78 (11,000 psi) |
| Property | Value |
| Dielectric Breakdown Strength (kV/mm) | 30 |
| Volume Resistivity (Ω·cm) | 7×10¹⁸ |
| Surface Resistivity (Ω) | 4×10¹⁵ |
| Dielectric Constant/Dissipation Factor @ 1 kHz | 4.3 / 0.01 |
| Dielectric Constant/Dissipation Factor @ 1 MHz | 3.7 / 0.05 |
| Dielectric Constant/Dissipation Factor @ 10 MHz | 3.5 / 0.05 |
| Substrate | Strength (N/mm²) | Strength (psi) |
| Mild Steel (grit blasted) | 23 | 3,300 |
| Aluminum (abraded) | 10 | 1,500 |
| Aluminum (anodized) | 21 | 3,100 |
| Stainless Steel | 10 | 1,500 |
| Polycarbonate | 3.3 | 480 |
| Nylon | 2.4 | 350 |
| Wood (Fir) | 12 | 1,800 |
| ABS | 4 | 580 |
| GRP (Polyester Resin Matrix) | 2 | 290 |
| Glass Fiber Reinforced Epoxy | 13 | 1,900 |
| Condition | % Initial Strength (500 h) | % Initial Strength (1000 h) |
| Air (22°C) | 180 | 185 |
| 98% RH (40°C) | 155 | 165 |
| Motor Oil (10W30) | 160 | 145 |
| Unleaded Gasoline | 120 | 110 |
| Water/Glycol 50/50 (87°C) | 115 | 105 |
| Acetone | 100 | 105 |
| Isopropanol | 120 | 120 |
| Salt/Fog (ASTM B-117) | 70 | 85 |
| Condensing Humidity (49°C) | 90 | 90 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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