Elantas Bectron® PU 4519 is an advanced formulation similar to Bectron® PU 4513 but features higher viscosity. This soft, elastic polyurethane offers low shrinkage, excellent insulation properties, and robust mechanical and chemical protection.
Highlight Features
- Accurate Dispensing: The higher viscosity allows for precise dispensing.
- Sub-Zero Flexibility: Maintains flexibility at temperatures as low as -40°C.
- Dielectric Properties: Provides strong dielectric performance.
- Curing Options: Cures at room temperature with an option for heat curing.
- Thermal Conductivity: Exhibits good thermal conductivity.
- Solvent-Free: Formulated without solvents.
- ROHS Compliant: Meets ROHS standards for environmental safety.
Applications of Elantas Bectron® PU 4519
Elantas Bectron® PU 4519 is ideal for potting electronic components that are sensitive to mechanical or thermal stress. Its higher viscosity facilitates more accurate dispensing. The material’s elastic properties and high thermal resistance make it suitable for applications subject to shock and vibration, such as impact drills, automotive electronics, and sensor technology. This product complies with ROHS directive requirements.
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Properties of materials as supplied
|
Property |
PU 4519 |
PH 4912 |
Units |
|
Colour |
Dark Blue |
Brown transpar- ent |
|
|
Viscosity 25°C DIN 53019 |
6000 ± 500 |
100 ± 30 |
mPa.s |
|
Spec. gravity 20°C DIN EN ISO 2811-1 |
1.40 ± 0.05 |
1.22 ± 0.03 |
g/cm3 |
|
Shelf Life |
6 |
6 |
months |
Properties of mixture
|
Property Mix Ratio: PU 4519 : PH 4912 |
4.0 3.5 |
1 1 |
Parts by weight Parts by volume @20°C |
|
Viscosity DIN 53019 |
25°C |
2500 ± 500 |
mPa.s |
|
Process time |
25°C |
50 |
Min |
