Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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LOCTITE® 221™ is a low-strength, anaerobic threadlocker designed for locking and sealing threaded fasteners that require disassembly with standard hand tools. It cures in the absence of air between close-fitting metal surfaces, preventing loosening and leakage due to shock or vibration. It is particularly suited for applications like set screws, small diameter, or long engagement length fasteners.
| Property | Value |
|---|---|
| Specific Gravity @ 25°C | 1.05 |
| Flash Point | See SDS |
| Viscosity (Brookfield RVT, 25°C) | 100 – 150 mPa·s (cP) |
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion (ISO 11359-2) | 100 × 10⁻⁶ K⁻¹ |
| Coefficient of Thermal Conductivity (ISO 8302) | 0.1 W/(m·K) |
| Specific Heat | 0.3 kJ/kg·K |
| Property | Value |
|---|---|
| Breakaway Torque (ISO 10964, M10 Steel Nuts & Bolts) | 5 – 12 N·m (40 – 110 lb·in) |
| Prevail Torque (ISO 10964, M10 Steel Nuts & Bolts) | 2 – 8 N·m (20 – 70 lb·in) |
| Breakloose Torque (ISO 10964, Pre-torqued to 5 N·m) | 9 – 21 N·m (80 – 90 lb·in) |
| Compressive Shear Strength (ISO 10123, Steel Pins & Collars) | 3 – 10 N/mm² (430 – 1,450 psi) |
| Condition | % of Initial Strength Retained |
|---|---|
| Motor Oil (125°C) | 95 – 100% |
| Unleaded Gasoline (22°C) | 95% |
| Brake Fluid (22°C) | 90 – 95% |
| Water/Glycol 50/50 (87°C) | 80% |
| Acetone (22°C) | 90 – 100% |
| Ethanol (22°C) | 90 – 95% |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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