TCR-J-PU-2C-LV-AR

TCR-J-PU-2C-LV-AR SILIKONFREIE VERGUSSMASSE

TCR-J-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: 1.5 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
PropertiesUnitGießharzHardener
MaterialPolyurethanAromatic Isocyanate
ColourBlueBrown
Density @ 22 °Cg/cm³2.35 – 2.451.20 – 1.25
Mixing RatioWeight100 : 8100 : 8
Viscosity (@ 22 °C, 10 rpm)mPas44,000 – 50,00015 – 35
Viscosity (Mixed @ 22 °C, 10 rpm)mPas3,500 – 5,0003,500 – 5,000
HardnessShore D40 – 5040 – 50
Tensile Strengthpsi44
Elongation%2525
Water absorption (30 days @ 23 °C)%0.20.2
Young Moduluspsi6565
Coefficient of Thermal Expansion
< Tg, TMA
> Tg, TMA

1 x 10-6 /K
1 x 10-6 /K

72.5
141.7

72.5
141.7
Curing Shrinkage%<1<1
Pot Life (100g @ 22 °C / adjustable)min25 – 3525 – 35
Curing Time @ 22 °C / Full chemical hardeningh / days16 – 30 / 10 – 1416 – 30 / 10 – 14
Shelf Life (from Date of Manufacturing, unopened @ 15–25 °C)Months66
UL Flammability (Equivalent)UL 94VO (1.5 mm)VO (1.5 mm)
RoHS Conformity2015 / 863 / EUYesYes
Class of InsulationFF
Technical
Thermal ConductivityW/mK1.51.5
Operating Temperature Range°C- 50 to + 160- 50 to + 160
Dielectric StrengthkV/mm2828
Volume Resistivity (@ 23 °C, 50% rel.H.)Ohm-cm1 x 10151 x 1015
Dielectric Constant (Ɛr)@ 50 Hz/1 kHz/1 MHz @ 23 °C5.6 / 4.5 / 3.95.6 / 4.5 / 3.9
Dielectric Loss Factor (tan δ)@ 50 Hz@ 23 °C0.090.09
Comparative Tracking Index (CTI)600600

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