T-flex
400
Series
APPLICATIONS INCLUDE:
T-flex™ 400 is a very soft, high performance freestanding gap filler that
has high compressibility. It has thermal conductivity of 1.5 W/mK as a
result of the use of high performance, proprietary boron nitride fillers in
the composition. T-flex 400 material is more compressible than most other
gap fillers. The combination of softness, high compressibility, and good
thermal conductivity result in a product with very low thermal resistance.
T-flex 400 is naturally tacky and for most applications does not need
an additional adhesive coating that can inhibit thermal performance.
T-flex 400 is electrically insulating, stable from -45°C to 200°C and
meets UL 94HB rating.
■High compressibility, soft and
elastic for low stress applications
■Good thermal conductivity
■Available in 19 thicknesses
0.020" to 0.200"
■Naturally tacky needing no
further adhesive coating
Cooling Components
to the Chassis or Frame
High Speed Mass Storage Drives
RDRAM Memory Modules
Heat Pipe Thermal Solutions
Automotive Engine Control Units
Telecommunication Hardware
THERMAL GAP FILLER WITH 1.5 W/mK
S
amples sent in twenty-four hours. Solutions that change a world.
4707 Detroit Avenue • Cleveland, Ohio 44102 • 1-888-246-9050 • www.thermagon.com
Gap Fillers • High Performance TIMs • Thermally Conductive PCB Materials
Certified to
ISO 9001:2000,
with design
T-flex
400
Series
Our customers are reminded that they bear the responsibility for testing Thermagon, Inc. materials for their proposed
use. Any information furnished by Thermagon, Inc. and its agents is believed to be accurate and reliable, but our
customers must bear all responsibility for the use and application of Thermagon, Inc. materials since Thermagon and
its agents cannot be aware of all potential uses. Thermagon makes no warranties as to the fitness, merchantability, or
suitability of any Thermagon, Inc. materials or products for any specific or general uses. Thermagon, Inc. shall not be
liable for incidental or consequential damages of any kind. All Thermagon, Inc. products are sold pursuant to the
Thermagon, Inc. domestic terms and conditions of sale in effect from time to time, a copy of which will be furnished
upon request.
A13511-00 Rev. G EO# 4681 3/18/04
Standard Thicknesses: 0.020" (0.51mm) 0.030" (0.76mm) 0.040" (1.02mm) 0.050" (1.27mm) 0.060" (1.52mm)
0.070" (1.78mm) 0.080" (2.03mm) 0.090" (2.29mm) 0.100" (2.54mm) 0.110" (2.79mm)
0.120" (3.05mm) 0.130" (3.30mm) 0.140" (3.56mm) 0.150" (3.81mm) 0.160" (4.06mm)
0.170" (4.32mm) 0.180" (4.57mm) 0.190" (4.83mm) 0.200" (5.08mm)
Consult the factory for alternate thicknesses
Standard Sheets Sizes: 9" x 9" (229mm x 229 mm) & 18" x 18" (457mm x 457mm)
T-flex 400 may be die cut into individual shapes. Pressure sensitive adhesive is not applicable for T-flex products.
Boron Spray Coating: T-flex 400 is offered with Boron Nitride spray coating on one side to eliminate tackiness.
Indicate spray coating by suffix “-SC1”.
Reinforcement: Fiberglass is required in thicknesses from 0.020" (0.51mm) through 0.040" (1.02mm).
Thicknesses above 0.040" (1.02mm) do not require reinforcement.
T-flex 420 T-flex 440 T-flex 460 T-flex 480 T-flex 4100 Test Method
Construction &
Composition
Reinforced silicone
elastomer
Reinforced silicone
elastomer Silicone elastomer Silicone elastomer Silicone elastomer
Color Green Green Green Green Green
Thickness 0.020"
(0.51mm)
0.040"
(1.02mm)
0.060"
(1.52mm)
0.080"
(2.03mm)
0.100"
(2.54mm)
Thickness Tolerance ± 0.002"
(± 0.05mm)
± 0.004"
(± 0.10mm)
± 0.006"
(± 0.15mm)
± 0.008"
(± 0.20mm)
± 0.010"
(± 0.25mm)
Density 1.26 g/cc 1.26 g/cc 1.25 g/cc 1.25 g/cc 1.25 g/cc
Hardness 75 Shore OO 70 Shore OO 60 Shore OO 60 Shore OO 60 Shore OO
Tensile Strength N/A N/A 20 psi 20 psi 20 psi
% Elongation N/A N/A 85 85 85
Outgassing TML
(Post Cured) 0.18% 0.18% 0.18% 0.18% 0.18%
Outgassing CVCM
(Post Cured) 0.12% 0.12% 0.12% 0.12% 0.12%
ASTM D2240
ASTM D412
ASTM D412
ASTM E595
ASTM E595
UL Flammability Rating 94 HB 94 HB 94 HB 94 HB 94 HB
Temperature Range -45°C to 200°C -45°C to 200°C -45°C to 200°C -45°C to 200°C -45°C to 200°C
Thermal Conductivity 1.5 W/mK 1.5 W/mK 1.5 W/mK 1.5 W/mK 1.5 W/mK
Thermal Impedance
@ 10 psi
@ 69KPa
0.87 °C-in2/W
5.61 °C-cm2/W
1.34 °C-in2/W
8.65 °C-cm2/W
1.61 °C-in2/W
10.40 °C-cm2/W
1.96 °C-in2/W
12.61 °C-cm2/W
2.30 °C-in2/W
14.84 °C-cm2/W
Thermal Expansion 405 ppm/C 405 ppm/C 190 ppm/C 190 ppm/C 190 ppm/C
Breakdown Voltage 1000 Volts AC >5000 Volts AC >5000 Volts AC >5000 Volts AC >5000 Volts AC
Volume Resistivity 2 x 1013 ohm-cm 2 x 1013 ohm-cm 2 x 1013 ohm-cm 2 x 1013 ohm-cm 2 x 1013 ohm-cm
Dielectric Constant
@ 1MHz 3.34 3.34 3.34 3.34 3.34
ASTM D5470
(modified)
ASTM D5470
(modified)
IPC-TM-650
2.4.24
ASTM D149
ASTM D257
ASTM D150
S
amples sent in twenty-four hours. Solutions that change a world.
4707 Detroit Avenue • Cleveland, Ohio 44102 • 1-888-246-9050 • www.thermagon.com
Gap Fillers • High Performance TIMs • Thermally Conductive PCB Materials
Certified to
ISO 9001:2000,
with design
