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® 5753-A/B (LV)
Manufacturer: Huntsman Advanced Materials
Technologies: Two-component polyurethane casting compound
Color: Part A – Amber liquid; Part B – Translucent liquid
Cure Type: Room temperature (24h) or accelerated heat cure (8h at 95°C)
Package Size: Contact to Techniq VN for details.
Shelf Life: 6 months
Arathane® 5753-A/B (LV) is a two-component translucent amber polyurethane casting compound designed to provide excellent electrical insulation for electronic and electrical parts. The cured system offers outstanding hydrolytic stability, low outgassing (meeting NASA requirements), and high thermal shock resistance, making it highly reliable in outer space and high-vacuum environments.
Encapsulation of stress-sensitive components.
Protection of coils, trimpots, potentiometers, and complex electronic modules.
Outer space and high-vacuum encapsulation applications requiring NASA-grade outgassing performance.
| Property | Arathane 5753-A | Arathane 5753-B (LV) |
|---|---|---|
| Viscosity @ 25°C (cPs) | 25 – 55 | 5,000 – 10,000 |
| Specific Gravity (g/cm³) | 1.21 | 1.05 |
| Flash Point (°C) | 177 | 232 |
| Percent Solids | 100% | 100% |
| Appearance | Amber liquid | Translucent liquid |
| Shelf Life (months) | 6 | 6 |
| Property | Value |
|---|---|
| Mix Ratio (Parts by weight) | A : B = 20 : 100 |
| Initial Viscosity @ 25°C (cPs) | ~6,000 |
| Pot Life @ 25°C (100g) | ~30 min |
| Hardness (Shore A) | 45 – 60 |
| Recommended Cure | 24h @ 25°C OR 8h @ 95°C |
| Property | Value |
|---|---|
| Hardness (Shore A) | 45 |
| Tensile Strength | 350 psi (2.4 N/mm²) |
| Elongation | 250% |
| Tensile Modulus | 140 psi |
| Glass Transition (Tg) | < -69°C |
| Thermal Conductivity | 3.9 × 10⁻⁴ Cal/sec·cm·°C |
| Coefficient of Thermal Expansion (ppm/°C) | α1 = 76, α2 = 170 |
| Fungus Resistance | Non-nutrient |
| Max Continuous Use Temp | 130°C |
| Property | Value |
|---|---|
| Volume Resistivity @ 25°C | 9.3 × 10¹⁵ Ω·cm |
| Volume Resistivity @ 95°C | 2.0 × 10¹³ Ω·cm |
| Dielectric Strength | 350 V/mil |
| Dielectric Constant @ 25°C, 60 Hz | 3.33 |
| Dielectric Constant @ 25°C, 1 MHz | 2.90 |
| Dissipation Factor @ 25°C, 60 Hz | 0.027 |
| Dissipation Factor @ 25°C, 1 MHz | 0.025 |
| Arc Resistance | 75 sec |
| Outgassing (NASA, 10⁻⁶ Torr) | TML = 0.41% ; CVCM = 0.03% |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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