The in plane and through plane thermal conductivity values are shown in Figure ), the capacity, density and diffusivity values that make up the former are shown in Figure . There is a close correlation in results in either direction for the nanocomposite specimens, despite the different experimental approaches used for measurement. The discrepancy for the neat epoxy specimens can be accounted for, as the through plane thermal diffusivity measurements are less accurate over a transparent surface. Since more laser light is lost to the sample rather than reflected at the thermal camera. Some anisotropic behaviour is observed for higher loadings of PG-CF (≥ 5 wt.%), with higher through plane than in plane conductivity. The thermal conductivity of the samples increases with increasing loading, the highest increase achieved (in the through plane direction) was 0.50 W m -1 K -1 for 10 wt.% PG-CF loading, a ~120% increase on neat epoxy.