• Item Name: Bectron® PT 4842
• Manufacturer: ELANTAS Europe
• Technologies: 1-component moisture-cure polyurethane, thixotropic, flexible, low solvent content
• Color: Clear transparent
• Cure Type: Ambient moisture cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 16 weeks
Bectron® PT 4842 is a one-component, low-viscosity polyurethane designed for thick film coating applications. It cures rapidly through atmospheric moisture to form a soft, flexible protective layer. The product offers strong adhesion, low shrinkage, solvent resistance, and excellent dielectric properties, even after water immersion. It is RoHS-compliant and UV-detectable for inspection.
Protective coating for PCBs against moisture and contamination
Securing large components against mechanical shock and vibration
Thick film coating on large PCB areas or selective components/contacts
Sealing open PCB connections
Suitable for low-temperature environments (down to –40 °C)
| Property | Condition | Value | Unit |
|---|---|---|---|
| Colour | – | Clear transparent | – |
| Viscosity | DIN 53019, 23°C, D=22.4 s⁻¹ | 3700 ± 900 | mPa·s |
| Specific Gravity | DIN EN ISO 2811-1, 23°C | 1.12 ± 0.05 | g/cm³ |
| Shelf Life | 5–10°C | 16 | weeks |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Temperature Range | – | –40 to +120 | °C |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Specific Gravity | DIN 16945, 23°C | 1.12 ± 0.05 | g/cm³ |
| Hardness | ISO 868, 23°C | 45 ± 10 | Shore A |
| Elongation at Break | DIN 53455, 23°C | 270 | % |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Volume Resistivity | IEC 60464-2, 23°C | 1.3 × 10¹³ | Ω·cm |
| Volume Resistivity (after water immersion, 7d) | 23°C | 3.5 × 10¹² | Ω·cm |
| Surface Resistivity | VDE 0303-3, 23°C | 5 × 10¹² | Ω |
| Surface Resistivity (after water immersion, 7d) | 23°C | 1 × 10¹² | Ω |
| Relative Permittivity | IEC 60250, 23°C | 3.5 | – |
| Dielectric Loss Factor (tan δ) | IEC 60250, 23°C | 0.03 | – |
| Dielectric Strength | IEC 60464-2, 23°C | 20 | kV/mm |
| Tracking Resistance | IEC 60112 | 600 | CTI |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Water Absorption | ISO 62, 24h at 23°C | 0.2 | % |
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