Thermal Gap Fillers

Thermal Gap Fillers

Tputty 502 Series

Creates Compression Of Interface Material

Tputty 502 is the best material for applications where large tolerance differences create the need for compression of the interface material beyond 50% of its original thickness.

Tputty 502 will flow and ensure low pressures on the components being cooled. In conjunction with outstanding compression characteristics, Tputty 502 has a high thermal conductivity, resulting in very low thermal resistance.

Tputty 502 is naturally tacky and requires no additional adhesive coating that can inhibit thermal performance.

• Soft and ultra high compressibility for low stress applications

• 3 W/mK thermal conductivity

• Available in sheets 0.020” – 0.200” (0.5mm – (5.0mm) thick and in bulk

• Naturally tacky needing no further adhesive coating

Additional Product Description Bulk:
Tputty™ 502 is available in bulk form in the following sizes:
100 cc Jar 500 cc Jar 1000 cc Jar
Consult the factory for alternate bulk sizes.Standard Sheet Sizes
9” x 9” (229mm x 229mm) and 18” x 18” (457mm x 457mm).
9” x 9” only over 0.100” thickness
Tputty™ 502 is available in individual die cut shapes. Pressure sensitive adhesive is not
applicable for Tputty™ products.Reinforcement
Tputty™ 502 sheets are reinforced on both sides with fiberglass.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
• Entire large panel PCB cooling
• Semiconductor automated test equipment (ATE)
• Any high compression low stress application
Breakdown Voltage (Volts AC) 2000, Test Method ASTM D149
Color White
Construction and Composition Boron nitride filled, silicone elastomer, fiberglass reinforced
Density 1.38
Dielectric Constant Range 1MHz 3.2, Test Method, ASTM D150
Dissipation Factor at 1 MHz 0.00
Other Bulk Putty – 100cc Jar|500cc Jar|1000cc Jar
Product Line Tputty 502 Series
Product Testing Procedures href=””>Compression/ Deflection href=””>Density href=””>Hardness href=””>Outgassing href=””>Thermal Resistance href=””>Thermal Conductivity href=””>Die Cutting Questions and Answers
Sheet Sizes (inches) 9 x 9|18 x 18
Sheet Sizes (mm) 229 x 229|457 x 457
Shelf Life Indefinite
Shore Hardness 5
Temperature Range -45 to 200C
Test Method – Dissipation Factor ASTM D150
Test Method – Thermal Conductivity ASTM D5470 (modified)
Thermal Conductivity (W/mK) 3.00
Thermal Expansion Coefficient of Thermal Expansion 92 Test Method IPC-TM-650 2.4.24
Thermal Impedance at 10 psi 0.44, at 69 KPa 2.84, Test Method: ASTM D5470 (modified)
Thickness Max (mm) 5.00
Thickness Min (mm) 0.50
Thickness Tolerance (inches) ±0.002
Thickness Tolerance (mm) ±0.050
UL Flammability Rating 94 V-0
Volume Resistivity Volume Resistivity Del 5, 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.