Elantas Bectron® PU 4516 is a robust polyurethane with low shrinkage, offering excellent insulation properties and providing reliable mechanical and chemical protection. This low viscosity system ensures ease of potting while delivering superior adhesion and thermal resistance.
Highlight Features
- Temperature Resistance: Withstands temperatures up to 130°C.
- Adhesion: Provides excellent adhesion to various substrates.
- Dielectric Properties: Delivers strong dielectric performance.
- Curing Options: Cures at room temperature with an option for heat curing.
- Low Shrinkage: Maintains stability and minimal shrinkage.
- ROHS Compliant: Meets ROHS standards for environmental safety.
Applications of Elantas Bectron® PU 4516
Elantas Bectron® PU 4516 is suitable for potting applications where high mechanical and chemical protection is needed. The processing time is approximately 40 minutes, during which viscosity will increase. For batch production, ensure the prepared volume allows processing within this timeframe. When using metering equipment, accelerators can be employed to shorten the setting time.
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Properties of materials as supplied
Property | PU 4516 | PH 4912 | Units |
Colour |
Black | Brown trans- parent |
|
Viscosity 25°C DIN 53019 | 450 ± 100 | 110 ± 30 | mPa.s |
Spec. gravity 20°C DIN EN ISO 2811-1 | 1.03 ± 0.05 | 1.23 ± 0.05 | g/cm3 |
Shelf Life | 6 | 6 | months |
Properties of mixture
Property
Mix Ratio: PU 4516 : PH 4912 |
2.0 2.4 |
1 1 |
Parts by weight Parts by volume @20°C |
Viscosity DIN 53019 | 25°C | 310 ± 90 | mPa.s |
Process time (200g mixture) | 25°C | 26 | Min |
Mechanical properties of cured compound
Property | Condition | Value | Units |
Specific Gravity DIN 16945 | 20°C | 1.09 ± 0.02 | g/cm3 |
Hardness ISO 868 |
| 70 ± 10 | Shore D |
Impact resistance DIN 53453 |
| 14 | N/mm.mm2 |
