Datasheet
www.kerafol.com
SOFTTHERM
®
Films
86/525
high thermal conductivity
Compression 86/525
Properties Unit 86/525
Colour violet
Assembly single layer,
without fi bre glass
reinforcement
Thermal Properties
Thermal resistance R
th
K/W 0.22
Thermal impedance R
ti
°Cmm²/W 89
Kin²/W 0.14
Thermal conductivity λ W/mK 5.5
Electrical Properties
Breakdown voltage U
d; ac
kV 1.25
Dielectric breakdown E
d; ac
kV/mm 2.5
Volume resistivity Ωm 1.6 x 10
13
Dielectric loss factor tan δ 1.0 x 10
-3
Dielectric constant ε
r
2.7
Mechanical Properties
Measured thickness (+/-10%) mm 0.500
Hardness Shore 00 50 - 65
Young´s modulus N/cm² 99
Physical Properties
Application temperature °C -40 to +180
Density g/cm³ 1.18
Total mass loss (TML) Ma.-% < 0.35
Flame rating UL-94 V-0
Possible thickness details see page 58
0
0.4
0.8
1.2
0
1
2
3
0 5 10 15 20 25 30
thermal resistance [K/W]
thickness [mm]
pressure [N/cm²]
Compression 86/525
Group of highly thermoconductive SOFT-
THERM
®
Films. Low thermal transitions
with good dielectric behavior and good
compressibility characterize these SOFT-
THERM
®
Films.
Optional available with
oneside adhesive coating 86/525K
Data for engineer guidance only.
Observed performance varies in application.
Engineers are reminded to test the material
in application.