The PVDF/CCB and PVDF-HFP/CCB composites were prepared by solution casting technique. The PVDF/CCB and PVDF-HFP/CCB composites show composition dependent morphological, mechanical, and electrical properties. It reveals from mechanical properties of PVDF/CCB and PVDF-HFP/CCB composites that CCB is non-reinforcing filler for both the polymer matrices. Hardness (Shore D) is highly affected by CCB loading in both the matrices (PVDF and PVDF-HFP). The AC conductivity of PVDF and PVDF-HFP is frequency dependent and it increases with increase in frequency. The AC conductivity of PVDF/CCB and PVDF-HFP/CCB composites is frequency dependent before percolation and frequency independent after percolation threshold. Dielectric loss decreases with increasing frequency. Thermal conductivity of PVDF/CCB and PVDF-HFP/CCB composites is highly influenced by temperature as well as CCB content in both the polymer matrices. The field emission scanning electron microscopy (FESEM), images of PVDF/CCB and PVDF-HFP/CCB composites of cryo- fractured samples show the surface morphology, dispersion and distribution of CCB in PVDF and PVDF-HFP matrices. Keywords: Percolation threshold, composite, Young modulus, thermal conductivity.