Silicone Free - Keratherm

Applications

• Properties

• Property	Symbol	Unit	U 23	U 80	U 90	Softtherm U 105	Softtherm U 200
  Color			white	blue	light blue	brown	brown
  Thermal Properties
  Thermal Resistance	Rth	K/W	0.52	0.20	0.09	0.95	< 0.60
  Thermal Impedance	Rti	°Cmm²/W Kin²/W	208 0.32	73 0.11	32.9 0.05	351 0.53	218 0.38
  Thermal Conductivity	?	W/mK	1.2	1.8	6.0	1.3	> 2.0
  Electrical Properties
  Breakdown Voltage	Ud;ac	kV	9.0	4.0	4.0	8	7.0
  Dielectric Breakdown	Ed;ac	kV/mm	> 30	25	25	16	14
  Volume Resistivity		Ocm	4.9×1011	1.44×1014	2.0×1011	1.7×1010	5.1X109
  Dielectric Loss Factor	tan d	1	8.0×10-2	13.0×10-3	13.7×10-3	1.3×10-2	3.6×10-2
  Dielectric Constant	er	1	1.7	3.2	3.10	4.6	8.1
  Mechanical Properties
  Measured Thickness	(±10%)	mm	0.250	0.150	0.200	0.5	0.5
  Hardness		Shore A	80 – 90	80 – 90	80 – 90	60 – 70	55 – 70
  Tensile Strength		N/mm²	5.0	3.0	2.5	–	–
  Elongation		%	250	130	150	–	–
  Youngs Modulus*		N/cm²	–	–	–	886	197
  Physical Properties
  Application Temperature		°C	-40 to +90	-40 to +125	-40 to +125	-40 to +110	-40 to +130
  Density	?	g/cm³	1.36	2.26	1.46.3	2.07	2.10
  Total Mass Loss	TML	Ma.-%	–	–	–	–	< 0.8
  Flame Class		UL	–	94V-0	94V-0	–	94V-0

  * – Youngs Modulus sample size 30x30x2.5mm3;
  – variable contact pressure;
  – compression 50% of measured thickness;