Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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• Item Name: Bectron® AR 4820 N
• Manufacturer: ELANTAS Europe GmbH
• Technologies: One-component polyurethane resin (moisture-cure system)
• Color: Yellowish
• Cure Type: Moisture cure at room temperature (faster with heat after humidity exposure)
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 16 weeks (5–10 °C)
Bectron® AR 4820 N is a one-component polyurethane resin with moderate viscosity that cures rapidly by reaction with atmospheric moisture. It forms a soft, flexible material suitable for sealing, coating, and protecting PCBs and components. It provides low shrinkage, excellent adhesion, solvent resistance, and maintains flexibility even at low temperatures. The product is RoHS compliant.
Moisture and contamination protection for PCBs.
Securing large electronic components against mechanical shock and vibration.
Selective thick-film coating on individual contacts or open PCB connections.
Suitable for applications requiring low-temperature flexibility (down to -45 °C) and strong adhesion without stressing delicate components.
| Property | Condition | Value | Unit |
|---|---|---|---|
| Colour | – | Yellowish | – |
| Viscosity (DIN 53019) | 23°C, D=3 s⁻¹ | 7,000 ± 2,000 | mPa·s |
| Specific gravity (DIN EN ISO 2811-1) | 23°C | 0.99 ± 0.05 | g/cm³ |
| Shelf life | 5–10 °C | 16 | weeks |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Temperature range | – | -45 to +120 | °C |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Specific gravity (DIN 16945) | 23°C | 0.99 ± 0.05 | g/cm³ |
| Hardness (DIN 53505) | 23°C | Shore A | – |
| Elongation to fracture (DIN 53455) | 23°C | – | % |
(Note: Hardness and elongation values are unspecified in the TDS excerpt.)
| Property | Condition | Value | Unit |
|---|---|---|---|
| Volume resistivity (ρD, VDE 0303-2) | 23°C | 1.0 × 10¹³ | Ω·cm |
| Volume resistivity after water immersion | 23°C, 7 days | 1.0 × 10¹² | Ω·cm |
| Surface resistivity (R0, VDE 0303-3) | 23°C | – | Ω |
| Surface resistivity after water immersion | 23°C, 7 days | – | Ω |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Water absorption (DIN 53495) | 7 days | – | % |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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