Tflex™ HD700

Tflex™ HD700

Silicone based Thermal Gap Filler

Tflex™ HD700 thermal gap filler combines 5 W/mK thermalconductivity with superior pressure versus deflection characteristics.  The combination will allow minimal stress oncomponents while also yielding low thermal resistance.  As a result, less mechanical and thermalstresses will be experienced within your device.

Tflex™ HD700PI can be provided with an integrated polyimidefilm on one side. This liner provides numerous application benefits likeelectrical isolation, placement ease during assembly, and tear resistance forapplications that require shear.

Tflex™ HD700 and Tflex™ HD700PI areavailable in thickness from 0.5mm (0.020”) to 5mm (0.200”).  The standard material Tflex™ HD700 materialis a light pink color, but we do have the option to provide this in a greycolor if a neutral color is desired (Tflex HD700,GR).

Features and Benefits

  • Low pressure versus deflection
  • Excellent surface wetting for low contact resistance
  • Minimizes board and component stress
  • Large tolerance applications
  • Environmentally friendly solution that meets regulatory requirements including RoHS and REACH


Automated PackagingAutomated Pad PlacementCustom AutomationCustom Product DevelopmentModelingPrototypingServiceTesting


Last Updated: 16/03/22

Technical Specification

Typical PropertiesColorPink
Density (g/cc)3.30
Operating Temperature Max (Celsius)200
Operating Temperature Min (Celsius)-50
Outgassing CVCM (%)0.070
Outgassing TML (%)0.230
Shelf Life2 years from Date of Shipment
Thermal PropertiesThermal Conductivity (W/mK)5.00
Thermal Resistance @10 psi Max (C-in2/W)1.200
Thermal Resistance @10 psi Min (C-in2/W)0.191
Thermal Resistance @30 psi Max (C-in2/W)0.919
Thermal Resistance @30 psi Min (C-in2/W)0.177
Thermal Resistance @50 psi Max (C-in2/W)0.587
Thermal Resistance @50 psi Min (C-in2/W)0.164
Electrical PropertiesDielectric Constant5.00
Volume Resistivity1.40 x10^14 Ohm-cm
Mechanical PropertiesHardness (Shore 00)54
DimensionsThickness Max (inches)0.200
Thickness Max (mm)5.08
Thickness Min (inches)0.020
Thickness Min (mm)0.51
ROHS CompliantYes
UL Flammability RatingV-0


Last Updated: 22/04/21
Last Updated: 27/12/21
Last Updated: 27/12/21
Last Updated: 27/12/21




Automotive ADASAutomotive ElectronicsAutomotive InfotainmentAutomotive Powertrain/ECUsDrones/SatellitesGaming SystemsInstrumentationNotebooks/Tablets/Portable DevicesRoutersSmart Home DevicesWireless infrastructure