Thermal conductivity and thermal resistance of thin silicone rubber

The Guarded Heat Flow Meter (GHFM-02) follows ASTM E1530-19 for testing thermal resistance and thermal conductivity of solids, such as metals, polymers, and composites. The easy to operate GHFM-02 follows the trusted steady-state approach, with the addition of a guard to limit the effects of lateral heat loss. This design allows testing of a wide range of materials with low to medium thermal conductivity.

Figure 1. A portable GHFM-02 that follows ASTM E1530-19 for the thermal conductivity

In this experiment, thin samples of silicone of 0.8 mm and 1.51 mm thick were measured for thermal conductivity and thermal resistance. A temperature delta between plates of 10˚C was used to establish a mean testing temperature of ~ 26 ˚C. Results of this testing may be seen in the following table:

Figure 2: Thermal conductivity and resistance results of high temperature thin silicone