TFlex 300


Tflex 600 is an exceptionally soft, highly compliant gap filling interface pad with a thermal
conductivity of 3 W/mK. These outstanding properties are the result of a proprietary boron
nitride filler in the composition.

The high conductivity, in combination with extreme softness produces incredibly low thermal resistances.

Tflex 600 is naturally tacky and requires no additional adhesive coating that can inhibit thermal performance. Tflex 600 is electrically insulating, stable from –45°C to 200°C and meets UL 94 V0 rating.

Very high compliancy for low stress applications

3 W/mK thermal conductivity

Available in thicknesses from 0.020” – 0.200” (0.5mm – 5.0mm)

Naturally tacky, needs no further adhesive coating

 Additional Product Description STANDARD THICKNESSES
0.020 to 0.200-inch (0.5 to 5.0mm)
0.020 to 0.200-inch thick material available in 0.010-inch (0.25mm) increments
Inquire about availability of material and options above 0.200-inchesSTANDARD SHEET SIZES
9 x 9” (229 x 229mm). 18 x 18” (457 x 457mm). 9 x 9” only over 0.100” thickness. TflexTM 600
can be die cut to individual shapes. Pressure sensitive adhesive is not applicable for TflexTM 600
Tflex™ 600 is naturally tacky on both sides. Tflex™ 600 can be provided tacky on one side only.
This is indicated by the suffix “DC1”. This option offers good separation properties allowing the
tacky side to stick to the heatsink/chasis/cold plate/etc. and the other “dry” side to release easily
from the component(s).

Fiberglass is required in 0.020” (0.51mm) and 0.030” (0.76mm). Thicknesses of 0.040” (1.02mm)
and above do not require reinforcement. Data for design engineer guidance only. Observed
performance varies in application. Engineers are reminded to test the material in application.

Applications Cooling components to the chassis or frame
High speed mass storage drives
RDRAM memory modules
Heat pipe thermal solutions
Automotive engine control units
Telecommunications hardware
Breakdown Voltage (Volts AC)
3000, Test Method ASTM D149
Color Blue-Violet
Construction and Composition Boron nitride filled, silicone elastomer, fiberglass reinforced
Density 1.34
Dielectric Constant Range 1MHz 3.31, Test Method, ASTM D150
Dissipation Factor at 1 MHz 0.00
Options Tacky one side only
Product Line Tflex 600 Series
Sheet Sizes (inches) 9 x 9|18 x 18
Sheet Sizes (mm) 229 x 229|457 x 457
Shelf Life Indefinite
Shore Hardness 51 – 3 sec
48 – 30 sec
Temperature Range
-45 to 200C
Tensile Strength test method ASTM D412
Test Method – Dissipation Factor ASTM D150
Test Method – Elongation ASTM D412
Test Method – Thermal Conductivity  ASTM D5470 (modified)
Thermal Conductivity (W/mK) 3.00
Thermal Expansion Coefficient of Thermal Expansion 600 Test method IPC-TM-650 2.4.24
Thermal Impedance at 10 psi 0.46, at 69 KPa 2.97, Test Method: ASTM D5470 (modified)
Thickness Max (mm) 5.00
Thickness Min (mm) 0.50
Thickness Tolerance (%) 10
UL Flammability Rating UL 94 V0
Volume Resistivity Volume Resistivity Del 2, Volume Resistivity, ASTM D257

A service that is competitive, responsive and reliable

Our sales team and engineers are happy to work directly on site with clients always providing a personal and direct approach to fulfilling customer needs

  • High quality products that are produced in the UK (not China).
  • Local Sales team and engineers available 5 days per week.
  • Comprehensive back up and after sales service, with an actual technician ready to listen and help on the telephone 5 days a week. (No automated phone queuing system)
  • All products are REACH and ROHS compliant.
  • A Reliable, discreet and trustworthy partner with a proven track record in design and engineering.
  • Very competitive compared to overseas competition.
  • A huge reduction in air miles and lead times compared to overseas suppliers.
  • Able to deliver to most destinations in the European Union within 24hrs.

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NOTICE: The information contained herein is to the best of our knowledge true and accurate. However, since the varied conditions of potential use are beyond our control, all recommendations or suggestions are presented without guarantee or responsibility on our part and users should make their own tests to determine the suitability of our products in any specific situation. This product is sold without warranty either expressed or implied, of fitness for a particular purpose or otherwise, except that this product shall be of standard quality, and except to the extent otherwise stated Techni3’s invoice, quotation, or order acknowledgement. We disclaim any and liability incurred in connection with the use of information contained herein, or otherwise. All risks of such are assumed by the user. Furthermore, nothing contained herein shall be construed as a recommendation to use any process or to manufacture or to use any product in conflict with existing or future patents covering any product or material or its use.