Keratherm White - Keratherm

The highly thermally conductive White Group with their well balanced thermal and electrical or dielectrical behavior are created by filling a silicone elastomer base with aluminum oxide. An increase in mechanical strength can be achieved by fiberglass reinforcement. Both the unreinforced and reinforced film types can optionally be supplied with an adhesive coating. In general, however, the very good self-adhesion of the film will be sufficient for the mounting required.

Possible Thickness: 0.125mm – 0.500mm


  • power supplies
  • white goods
  • audio and video components
  • engine controllers
  • power converters (AC-DC, DC-DC)
  • Property Symbol Unit 86/30
    Color white
    Thermal Properties
    Thermal Resistance Rth K/W 0.22
    Thermal Impedance Rti °Cmm²/W
    Thermal Conductivity λ W/mK 2.5
    Electrical Properties
    Breakdown Voltage Ud;ac kV 1.5
    Dielectric Breakdown Ed;ac kV/mm 7.0
    Volume Resistivity Ωcm 2.5×1011
    Dielectric Loss Factor tan δ 1 2.2×10-2
    Dielectric Constant εr 1 3.0
    Mechanical Properties
    Overall Thickness (±10%) mm 0.225
    Hardness Shore A 70 – 80
    Tensile Strength N/mm² 2.0
    Elongation % 31
    Physical Properties
    Application Temperature °C -60 to +250
    Density ρ g/cm³ 2.33
    Flame Class UL 94V-0