Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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LOCTITE® UK U-05FL (Hysol® Product U-05FL) is a two-component, medium-viscosity urethane adhesive. It cures at room temperature to form an off-white, highly flexible bond line with excellent peel and shear strength.
| Component | Property | Value | Range |
|---|---|---|---|
| Resin | Chemical Type | Polyisocyanate | – |
| Appearance | Yellow viscous liquid | – | |
| Specific Gravity @ 25°C | 1.10 | 1.0 – 1.2 | |
| Viscosity @ 25°C (mPa.s) | 640 | 300 – 1,100 | |
| Flash Point (TCC) (°C) | 188 | – | |
| Hardener | Chemical Type | Polyol | – |
| Appearance | Cloudy white liquid | – | |
| Specific Gravity @ 25°C | 1.10 | 0.9 – 1.1 | |
| Viscosity @ 25°C (mPa.s) | 152,000 | 90,000 – 215,000 | |
| Flash Point (TCC) (°C) | >93 | – | |
| Mixture | Appearance | Off-white | – |
| Specific Gravity @ 25°C | 1.10 | – | |
| Mix Ratio (R:H) (by weight) | 100:200 | – | |
| Mix Ratio (R:H) (by volume) | 1:2 | – |
| Property | Value |
|---|---|
| Working Life (minutes) | 5 |
| Tack-Free Time (minutes) | 160 |
| Property | Value |
|---|---|
| Dielectric Strength (Volts/Mil) | 400 |
| Tensile Strength (ASTM D638, psi) | 1,300 |
| Tensile Elongation (ASTM D638, %) | 74 |
| Hardness (Shore D, ASTM D1706) | 45 |
| Glass Transition Temperature (Tg, °C) | 48 |
| Substrate | Shear Strength (N/mm²) | Shear Strength (psi) |
|---|---|---|
| Grit-Blasted Steel | 6.4 | 930 |
| Aluminum (Abraded/Acid Etched) | 14.6 | 2120 |
| Aluminum (Anodized) | 5.2 | 750 |
| Stainless Steel | 6.3 | 910 |
| Polycarbonate | 13.6 | 1970 |
| Nylon | 3.7 | 530 |
| Wood (Fir) | 9.6 | 1390 |
| Substrate | Strength (N/mm²) | Strength (psi) |
|---|---|---|
| PVC | 8.5 | 1230 |
| ABS | 6.4 | 930 |
| Epoxy | 21.4 | 3110 |
| Glass | 9.2 | 1340 |
| Condition | Temperature (°C) | % Initial Strength Retained (500 hr) | % Initial Strength Retained (1000 hr) |
|---|---|---|---|
| Air | 87 | 144 | 105 |
| Motor Oil (10W-30) | 87 | 95 | 180 |
| Unleaded Gasoline | 87 | 57 | 69 |
| Water/Glycol (50/50) | 87 | 130 | 108 |
| Salt/Fog (ASTM B-117) | 22 | 97 | 82 |
| 95% Relative Humidity | 38 | 102 | 112 |
| Condensing Humidity | 49 | 111 | 86 |
| Water | 22 | 107 | 108 |
| Acetone | 22 | 47 | 68 |
| Isopropyl Alcohol | 22 | 54 | 57 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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