TCR-N-PU-2C-LV-AR
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DOWNLOAD TCR-N-PU-2C-LV-AR Data Sheet
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TCR-N-PU-2C-LV-AR is a 2-part addition cure polyurethan potting compound which is filled with thermally conductive fillers of high temperature stability. It is characterised by very good dielectric and mechanic properties and is suited for encapsulating electric and electronic parts such as transformators, capacitors, inductors, sensors, LEDs and can be moulded or dispensed under normal conditions at room temperature or in vacuum. Its rheologic behaviour allows for usage in geometries that are difficult to access.
PROPERTIES
- Polyurethan
- Low viscosity
- 2 part addition cure
- Thermal conductivity: 2.6 W/mK
- Almost zero stress on components
- Dispensable or mouldable
- Solvent-free
- High resistivity against water and humidity
- Free of halogenated flame retardants
AVAILABILITY
- Tinplate container
APPLICATION EXAMPLES
Thermal link of:
- Inductors
- Capacitors
- LED
- Battery packs
For use in Automotive applications / Telecommunication / Controlling units / Industrial PCs
OVERVIEW
| Property | Unit | Casting resin | Hardener |
|---|---|---|---|
| Material | Polyurethan | Aromatic Isocyanate | |
| Colour | Natural | Brown | |
| Density @ 22 °C | g/cm³ | 2.25 – 2.35 | 1.20 – 1.25 |
| Mixing Ratio | Weight | 100 : 8 | 100 : 8 |
| Viscosity (@ 22 °C, 10 rpm) | mPas | 100,000 – 140,000 | 15 – 35 |
| Viscosity (Mixed @ 22 °C, 10 rpm) | mPas | 15,000 – 35,000 | 15,000 – 35,000 |
| Hardness | Shore D | 40 – 50 | 40 – 50 |
| Water absorption (30 days @ 23 °C) | % | 0.4 | 0.4 |
| Coefficient of Thermal Expansion < Tg, TMA > Tg, TMA | 1 x 10-6 /K 1 x 10-6 /K | 91.4 129.1 | 91.4 129.1 |
| Curing Shrinkage | % | <1 | <1 |
| Pot Life (100g @ 22 °C / adjustable) | min | 10 – 30 | 10 – 30 |
| Curing Time @ 22 °C / Full chemical hardening | h / days | 14 – 24 / 10 – 14 | 14 – 24 / 10 – 14 |
| Shelf Life (from Date of Manufacturing, unopened @ 15–25 °C) | Months | 6 | 6 |
| UL Flammability (Equivalent) | UL 94 | VO (4.0 mm) | VO (4.0 mm) |
| RoHS Conformity | 2015 / 863 / EU | Yes | Yes |
| Class of Insulation | B | B | |
| Technical | |||
| Thermal Conductivity | W/mK | 2.6 | 2.6 |
| Operating Temperature Range | °C | - 40 to + 130 | - 40 to + 130 |
| Dielectric Strength | kV/mm | 31 | 31 |
| Volume Resistivity (@ 23 °C, 50% rel.H.) | Ohm-cm | 1 x 1015 | 1 x 1015 |
| Dielectric Constant (Ɛr) | @ 50 Hz/1 kHz/1 MHz @ 23 °C | 5.8 / 5.2 / 4.6 | 5.8 / 5.2 / 4.6 |
| Dielectric Loss Factor (tan δ) | @ 50 Hz@ 23 °C | 0.09 | 0.09 |
| Comparative Tracking Index (CTI) | 600 | 600 |
