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® 1B73
– Manufacturer: HumiSeal
– Technologies: Single-component, fast-drying acrylic conformal coating
– Color: Not specified
– Cure Type: 24 hrs at room temperature or 2 hrs at 76°C
– Package Size: Contact to Techniq VN for details.
– Shelf Life: 24 months
HumiSeal® 1B73 is a fast-drying, single-component acrylic conformal coating designed for printed circuit assemblies (PCBs). It offers excellent flexibility, electrical insulation, and UV fluorescence for inspection. The product complies with MIL-I-46058C, IPC-CC-830, UL (File E105698), and RoHS Directive 2011/65/EU. It is easily repairable and can be applied through dipping, spraying, or brushing.
| Property | Value | Test Method |
|---|---|---|
| Density | 0.92 ± 0.02 g/cm³ | ASTM D1475 |
| Solids Content | 29.5 ± 2% | Fed-Std-141, Method 4044 |
| Viscosity | 250 ± 20 cPs | Fed-Std-141, Method 4287 |
| VOC | 661 g/L | – |
| Shelf Life | 24 months | – |
| Property | Value | Test Method |
|---|---|---|
| Drying Time to Handle | 30 min | Fed-Std-141, Method 4061 |
| Recommended Coating Thickness | 25 – 75 µm | – |
| Curing Conditions | 24 hrs @ RT or 2 hrs @ 76°C | – |
| Time to Reach Optimum Properties | 7 days | – |
| Thermal Shock Resistance | -65°C to 125°C (50 cycles) | MIL-I-46058C |
| Glass Transition Temperature (Tg) | 42°C | DSC |
| Coefficient of Thermal Expansion | 67 ppm/°C | TMA |
| Modulus | 11.1 MPa | DMA |
| Flammability Rating | V-0 | UL 94 |
| Dielectric Withstand Voltage | >1500V | MIL-I-46058C |
| Dielectric Breakdown Voltage | 6300V | ASTM D149 |
| Dielectric Constant (1MHz, 25°C) | 2.6 | ASTM D150-98 |
| Dissipation Factor (1MHz, 25°C) | 0.010 | ASTM D150-98 |
| Insulation Resistance | 5.5 × 10¹⁴ Ω | MIL-I-46058C |
| Moisture Insulation Resistance | 7.0 × 10¹⁰ Ω | MIL-I-46058C |
| Fungus Resistance | Passes | ASTM G21 |
Thinner: HumiSeal® Thinner 73
Remover: HumiSeal® Stripper 1080, 1080A
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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