Phase Change Material (PCM)

PCM respectively Phase Change Material is a wax based thermally conductive material. It begins to melt and flow at temperatures between 45°C and 55°C. It is available in different material thicknesses 

Phase Change Material to compensate smallest unevennesses

Our phase change material is based on wax, is solid as delivered and begins to flow at temperatures between 45°C and 55°C. This compensates for microscopic unevenness between the heat source and heat sink and ensures optimal heat transfer resistance. Standard material thicknesses are: 0.06 / 0.13 / 0.20 / 0.25 / 0.30 / 0.35 / 0.40 / 0.45 / 0.50 mm.

Phase Change Material

Material thicknesses and delivery forms Phase Change Material

The phase change material of our TCPC series is naturally adhesive, flexible and very easy to use. The material is available in material thicknesses from 0.13 to 0.5 mm, in various colors and in various delivery forms, such as standard plates with 400x300 mm or customer-specific punched parts. More details can be found in our product specifications and in our data sheets.

Advantages Phase Change Material

  • Smoothes out microscopic bumps
  • High volume resistance of 10^13 Ohm*cm
  • Adhesive, flexible and easy to use
  • Standard 400x300 mm plates or custom die-cuts
  • Available in thicknesses from 0.06 to 0.5 mm

What are Phase Change Materials (PCMs)?

PCMs are latent heat accumulators which can store thermal energy over a long period of time with low loss. The phase change materials have a latent heat of fusion which is much greater than the heat they can store due to their normal specific heat capacity. A prominent example of this is water: during freezing (i.e. from water to ice) - i.e. during phase change or phase transition from liquid to solid at 0°C - as much heat energy is released as is needed to heat the same amount of water from 0°C to 80°C. This is the case for the heat transfer from water to ice.

Why are PCMs important for electronic components?

Electronic components depend on good heat transfer to cooling components because they are sensitive to overheating. Thermally conductive phase change material is an ideal substitute for thermal pastes. A common alternative to PCM components are heat conduction plates, which are supported by fans. However, since fans have moving parts, failures can occur. In addition, phase change materials do not require temperature sensors, so they require less cooling space and are more reliable. Between the heat peaks, the PCM dissipates heat via the cooling fins, regenerating itself.

Variety of applications


Banking terminals and printers


Enclosures and cabinets


Measurement and control


Military & aviation electronics



Renewable energy