Silicone-free films to conduct heat

KERATHERM® SOFTTHERM® films are a group of highly elastic ceramic-filled films. They excel thanks to their exceptional compressibility and their optimum plasticity while exhibiting effective thermal conductivity and good electrical properties.

These films are especially suitable to compensate for greater component surface irregularities or to use in applications sensitive to pressure.


  • Compensates for component surface irregularities
  • Optimized thermal transition
  • Good compression behavior
  • UL-listed


  • Highly flexible film
  • Exceptional versatility
  • Graded thermal conductivity
  • Good electrical insulation
  • High temperature stability


  • RD RAM memory chips
  • Heat pipe thermal solutions
  • Automotive industry
  • Control units
  • Plasma supply panels

Film options

  • Optional single-sided adhesive coating
  • Special thicknesses available
  • Supplied on roll or as ready-punched products
  • Fiber glass reinforcement available
Softtherm silicone-free thermally conductive films
Film thermal conductivity W/mK thermal resistance K/W breakdown voltage kV measured thickness mm hardness Shore 00
U 110  2.0 1.2 16 1.0 60 - 75