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Gap Filler Comparison Table
Tflex 300 Tflex P100 Tflex HR400 Tflex HD300 Tflex 600 Tflex HR600 Tflex SF600 Tflex P300
Construction
Ceramic filled
silicone sheet
Tgard lined
Elastomer
Ceramic filled
silicone
elastomer
Ceramic filled
silicone
elastomer
Boron nitride
filled silicone
elastomer
Ceramic filled
silicone sheet
Boron Nitride
filled gap pad
Silicone gap
filler with an
integrated
polyimide liner
Color Light Green Yellow Dark Grey Pink Blue-Violet Dark Grey Rose Purple
Thickness
Range
0.020” -
0.200"
(0.50 mm - 5.08
mm)
0.020” - 0.200"
(0.50 mm - 5.08 mm)
0.020” - 0.400"
(0.50 mm - 10.16 mm)
0.020” - 0.200"
(0.50 mm - 5.08 mm)
0.020” - 0.200"
(0.50 mm - 5.08 mm)
0.010” - 0.200"
(0.25 mm - 5.08 mm)
0.010” - 0.140"
(0.25 mm - 3.56 mm)
0.020" - 0.200"
(0.5 mm – 5.08 mm)
Thermal
Conductivity
(W/m-K)
1.2 1.2 1.8 2.7 3.0 3.0 3.0 3.0
Density
(g/cc)
1.8 2.3 1.9 3.1 1.3 2.5 1.3 3.1
Hardness
(Shore 00)
51 (20-30 mil)
25 (40-200
mil)
13 53 38 51 40 80 30
Outgassing
TML (%)
0.56 0.32 0.32 0.39 0.13 0.19 1.30 0.20
Outgassing
CVCM (%)
0.10 0.05 0.09 0.10 0.05 0.07 0.63 0.05
Temperature
Range
-40°C to 160°C -40°C to 200°C -50°C to 160°C -40°C to 200°C -45°C to 200°C -45°C to 200°C -20°C to 125°C -40°C to 125°C
UL 94
Flammability
Rating
V-0 V-0 V-0 V-0 V-0 V-0 V-0 V-0
Rth@ 40 mils,
10 psi
(°C–in2/W)
0.98 1.50 1.10 0.47 0.62 0.35 0.81 0.59
Dielectric
Constant
@ 1 MHz
4.5
(@ 10 GHz)
7.5 4.8 6.6
3.3
(@10 GHz)
19.0
3.1
(@10 GHz)
4.6
Volume
Resistivity
(ohm-cm)
1 x 10
13
1.3 x 10
12
2 x 10
13
1.2 x 10
14
2 x 10
13
1 x 10
13
1x 10
14
2 x 10
^14
6 | THERMAL INTERFACE SOLUTIONS