Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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• Item Name: HumiSeal® 1A20R
• Manufacturer: HumiSeal
• Technologies: Single-component, chemically resistant urethane conformal coating
• Color: Not specified
• Cure Type:
HumiSeal® 1A20R is a single-component, chemically resistant, fast-curing polyurethane conformal coating. It fluoresces under UV light for easy inspection and meets MIL-I-46058C, IPC-CC-830, and RoHS Directive 2002/95/EC compliance. It provides excellent protection against moisture, chemicals, and environmental stress.
| Property | Value | Test Method |
|---|---|---|
| Density | 1.02 ± 0.02 g/cm³ | ASTM D1475 |
| Solids Content | 50 ± 3 % | Fed-Std-141, Meth. 4044 |
| Viscosity | 100 ± 30 centipoise | Fed-Std-141, Meth. 4287 |
| VOC Content | 511 g/L | – |
| Shelf Life at Room Temperature | 12 months | – |
| Property | Value | Test Method |
|---|---|---|
| Recommended Coating Thickness | 25 – 75 microns | – |
| Drying Time to Handle | 60 minutes | Fed-Std-141, Meth. 4061 |
| Recommended Curing Conditions | 24 hrs @ RT or 3 hrs @ 76°C | – |
| Time to Reach Optimum Properties | 7 days | – |
| Thermal Shock Resistance | -65°C to 125°C | MIL-I-46058C |
| Coefficient of Thermal Expansion | 515 ppm/°C | TMA |
| Glass Transition Temperature (Tg) | 71°C | DSC |
| Modulus | 89.6 MPa | DMA |
| Dielectric Withstand Voltage | >1500 volts | MIL-I-46058C |
| Dielectric Constant (1MHz, 25°C) | 3.5 | ASTM D150-98 |
| Dissipation Factor (1MHz, 25°C) | 0.028 | ASTM D150-98 |
| Insulation Resistance | 3.0 x 10¹⁴ ohms (300TΩ) | MIL-I-46058C |
| Moisture Insulation Resistance | 4.8 x 10¹⁰ ohms (48GΩ) | MIL-I-46058C |
| Fungus Resistance | Passes | ASTM G21 |
| Chemical Resistance | Excellent | – |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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