Products

Keratherm Softtherm®: High Thermal Conductivity

This group of Softtherm was created as a result of intensive collaboration with our customers. They are characterized by their high thermal conductivity within the gap-fillers and by their varying levels of hardness of the materials.

Graphs (Click for full-size)

Compressibilities of Softtherm 86/255
Compressibilities of Softtherm 86/250

Properties

Keratherm Softtherm®: High Thermal Conductivity
Property Symbol Unit 86/255 86/250
Color     white/red white/red
Thermal Properties
Thermal Resistance Rth K/W 0.85 0.95
Thermal Impedance Rti °Cmm²/W
Kin²/W		 250
0.39		 385
0.60
Thermal Conductivity λ W/mK 2.0 1.3
Electrical Properties
Breakdown Voltage Ud;ac kV 10.0 8.0
Volume Resistivity   Ωcm 1.0x1011 1.0x1011
Dielectric Loss Factor tan δ 1 2.5x10-3 2.5x10-3
Dielectric Constant εr 1 3.8 3.8
Mechanical Properties
Available Thickness (±10%) mm 0.5 - 5.0 0.5 - 5.0
Hardness   Shore 00 30 45
Youngs Modulus*   N/cm² 276 138
Physical Properties
Application Temperature   °C -60 to +200 -60 to +200
Flame Class   UL 94V-1 -
Total Mass Loss TML Ma.-% < 0.50 < 0.42
* - Youngs Modulus sample size 30x30x2.5mm3;
   - variable contact pressure;
   - compression 50% of measured thickness;