Sur-Cool SFR Series

Sur-Cool SFR (fiberglass reinforced silicone) Series offers provides thermal interface material options for engineers requiring economical reductions in heat. Sur-Cool SFR’s thermal performance and electrical isolation properties make it an effective choice in a wide variety of applications.

Ideal for applications that call for optimal performance in a thin, highly conductive and dimensionally stable for, the Sur-Cool SFR series features ease of application and only moderate mounting pressure requirements providing a solution for efficiently transferring heat between electronic components such as LEDs, semiconductors metal core and FR4 boards, and heat sinks.

  • Low thermal impedance
  • Compliant, smooth surface
  • Moderate mounting pressure
  • Electrically insulating
  • Adhesive, UL94 VO coating options
  • Lighting applications
  • Electronics
  • Area where heat needs to be transferred to a frame, chassis, or other type of heat spreader
  • Power conversion
  • Between heat-generating components and a heat sink
PropertiesTest MethodTypical Values SFR 100VTypical Values SFR 150VTypical Values SFR 200V
CompoundSilicone/FiberglassSilicone/FiberglassSilicone & Ceramic Filled
Thickness (mm)*ASTM-D-3740.230.230.23
Thermal Conductivity (W/mK)ASTM-D-54701.001.502.00
Durometer (Shore A)ASTM-D-2240808080
Specific Gravity (g/cm3)ASTM-D-7922.312.252.50
Tensile Strength (kgf/cm2)ASTM-D-4127.356.907.35
Elongation (%)ASTM-D-412130270190
Breakdown Voltage (Volts)ASTM-D-149>6,000>6,000>6,000
Thermal Impedance (°C in2/W)ASTM-D-54700.5790.5120.385
Volume Resistivity (ohm-cm)ASTM-D-2572 x 10152 x 10152 x 1015
Temperature Range (°C)-60 to +200-60 to +200-60 to +200
Flame Resistance UL-94 File #E325496VOVOVO
Halogen FreePassPassPass

*Other thicknesses available upon request

For other options and to view full datasheet on your mobile device, please download datasheet in the downloads tab.

sur-cool-sfr-datasheetDownload the data sheet for Sur-Cool SFR Series to get complete specifications and data points.

sur-cool-sfr-product Fiberglass reinforced silicone