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TGF-MXS-SI Silikon Gap Filler sehr weich optional glasfaserverstärkt

TGF-MXS-SI is an electrically insulating thermally conductive silicone gap filler. It is ideal for use in applications where thermal transfer over large gaps caused e.g. by big tolerances or different stack up heights must be achieved. Due to the specific formulation and filling with ceramic particles the silicone elastomer has a high thermal conductivity. Through its ultra softness and flexibility the material perfectly mates to irregular surfaces thus filling gaps at minimum pressure. By its use the total thermal resistance is minimised. The natural tackiness of the material allows for an easy and reliable pre-assembly. The optional conductive fibreglass reinforced silicone laminate on one side provides for a high mechanic stability and strengh.


  • Ultra soft and compliable
  • Thermal conductivity: 2.4 W/mK
  • Operates at minimum pressure
  • Extraordinary chemical resistance and longterm stability
  • Shock absorbing
  • Easy mounting through self tackiness
  • One or two-side self-tacky


  • Sheet 200 x 400 mm
  • Tacky on both sides
  • Tacky on one side by fibreglass reinforced laminate
  • Die cut parts
  • Kiss cut parts on sheet


Thermal link of:

  • SMD packages
  • Through-hole vias
  • Capacitors
  • Electronic parts to heat pipes

For use in Automotive applications / Laptops / Medicine engineering / Industrial PCs


MaterialCeramic filled siliconeCeramic filled siliconeCeramic filled siliconeCeramic filled silicone
ColourGrey (/ Red laminate)Grey (/ Red laminate)Grey (/ Red laminate)Grey (/ Red laminate)
Optional Reinforcement (TGF-MXSXXXX-SI-GF)Fibreglass laminateFibreglass laminateFibreglass laminateFibreglass laminate
HardnessShore 0025252525
UL FlammabilityUL 94V1V1V1V1
RoHS Conformity2015 / 863 / EUYesYesYesYes
Resistance1 @ 60 PSI @ Thickness°C-inch²/W (mm)0,44 (0,25)1,00 (0,45)1,49 (0,86)2,05 (1,50)
Resistance1 @ 30 PSI @ Thickness°C-inch²/W (mm)0,53 (0,32)1,15 (0,63)1,79 (1,15)2,50 (1,73)
Resistance1 @ 10 PSI @ Thickness°C-inch²/W (mm)0,63 (0,40)1,26 (0,75)2,03 (1,40)2,77 (2,05)
Thermal ConductivityW/mK2,42,42,42,4
Operating Temperature Range°C- 40 bis + 200- 40 bis + 200- 40 bis + 200- 40 bis + 200
Dielectric StrengthkV / mm4444
Volume ResistivityOhm - cm1,7 x 10131,7 x 10131,7 x 10131,7 x 1013