Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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HumiSeal® 1B12 is a single-component, fast-drying, low-viscosity acrylic conformal coating designed for printed circuit assemblies. It is particularly suitable for impregnating coils, coating ferrite cores, and can be easily soldered through or chemically removed. The coating is RoHS Directive 2002/95/EC compliant.
| Property | Value | Test Method |
|---|---|---|
| Density | 0.89 ± 0.02 g/cm³ | ASTM D1475 |
| Solids Content | 21.5 ± 1.5% | Fed-Std-141, Meth. 4044 |
| Viscosity | 30 ± 5 cP | Fed-Std-141, Meth. 4287 |
| VOC Content | 714 g/L | – |
| Shelf Life | 18 months | – |
| Property | Value | Test Method |
|---|---|---|
| Drying Time (Handle) | 10 min | Fed-Std-141, Meth. 4061 |
| Recommended Coating Thickness | 25 – 75 µm | – |
| Recommended Curing | 24 hrs @ RT or 30 min @ 76°C | – |
| Time for Optimum Properties | 7 days | – |
| Thermal Shock Resistance | -65°C to 125°C (50 cycles) | MIL-I-46058C |
| Glass Transition Temperature | 32°C | DSC |
| Coefficient of Thermal Expansion | 56 ppm/°C | TMA |
| Modulus | 67.4 MPa | DMA |
| Dielectric Breakdown Voltage | >1500V | MIL-I-46058C |
| Dielectric Constant (1MHz, 25°C) | 2.8 | ASTM D150-98 |
| Dissipation Factor (1MHz, 25°C) | 0.01 | ASTM D150-98 |
| Insulation Resistance | 2.5 × 10¹⁴ Ω (250TΩ) | MIL-I-46058C |
| Moisture Insulation Resistance | 3.0 × 10¹⁰ Ω (30GΩ) | MIL-I-46058C |
| Fungus Resistance | Passes | ASTM G21 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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