Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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Item Name: Arathane® 5750-A/B (LV)
Manufacturer: Huntsman Advanced Materials
Technologies: Two-component urethane conformal coating
Color: Part A – Amber liquid; Part B – Translucent liquid
Cure Type: Room or heat curing (25–125 °C)
Package Size: Contact to Techniq VN for details.
Shelf Life: 6 months
Arathane® 5750-A/B (LV) is a two-component, translucent, soft, repairable urethane conformal coating designed to insulate printed circuit boards (PCBs) and electronic components.
Low outgassing: suitable for outer space and high-vacuum environments.
Excellent reversion resistance under heat and humidity.
Complies with MIL-I-46058C and IPC CC 830 Amendment 1 Type UR Class 3.
Flammable, moisture-sensitive; requires careful handling and storage.
Protective conformal coating for PCBs and electronic assemblies.
Application methods: dip, spray, spread.
Suitable for environments requiring:
Low modulus and repairability.
Resistance to humidity, heat, and fungus.
Long-term insulation with minimal outgassing (space, high-vacuum systems).
| Property | Arathane 5750-A | Arathane 5750-B (LV) |
|---|---|---|
| Appearance | Amber liquid | Translucent liquid |
| Viscosity (cPs) | 50 | 600 |
| Specific gravity (g/cm³) | 1.21 | 0.92 |
| Flash point (°C) | 7 | 17 |
| Percent solids (%) | 90 ± 3 | 82 ± 3 |
| Property | Value |
|---|---|
| Mix ratio (by weight) | 18 (Part A) : 100 (Part B) |
| Initial viscosity (cPs) | ~550 |
| Pot life at 25°C (100g) | ~2 hours |
| Temp (°C) | Gelation (min) | Tack-free (h) | Full cure |
|---|---|---|---|
| 25 | 120 | 24 h | 7 days |
| 65 | 45 | 2 h | 9 h |
| 100 | 25 | 1.5 h | 4 h |
| 125 | 15 | 1 h | 2 h |
| Property | Value |
|---|---|
| Hardness | Shore A 50 |
| Tensile strength | 350 psi (2.4 N/mm²) |
| Elongation | 150% |
| Glass transition (Tg) | < -70°C |
| Max continuous use temp | 130°C |
| Flame resistance | Self-extinguishing |
| Fungus resistance | Non-nutrient |
| Flexibility | No cracking/crazing |
| Property | Value |
|---|---|
| Total mass loss (%) | 0.41 |
| Collected volatile condensable materials (%) | 0.03 |
| Property | Value |
|---|---|
| Insulation resistance | > 1 × 10¹⁵ Ω |
| Volume resistivity (25°C) | 9.3 × 10¹⁵ Ω·cm |
| Volume resistivity (95°C) | 2.0 × 10¹³ Ω·cm |
| Dielectric strength (3 mil / 0.075 mm) | > 1,500 V/mil |
| Dielectric constant (25°C, 1 kHz) | 2.5 (3.0 @100 kHz) |
| Dielectric constant (100°C, 1 kHz) | 3.6 (3.2 @100 kHz) |
| Dissipation factor (25°C, 1 kHz) | 0.022 (0.025 @100 kHz) |
| Dissipation factor (100°C, 1 kHz) | 0.024 (0.027 @100 kHz) |
| Moisture resistance | 8.2 × 10¹¹ Ω |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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