Graphene is a nanoparticle that has attracted a lot of interest lately due to its various outstanding properties such as high mechanical strength, barrier properties, thermal stabilization and electrical conductivity. To take advantage of these promising properties, great efforts were made recently to develop and optimize graphene’s large-scale production routes. Simultaneously, with the progressive development of graphene production, polymer-based graphene composites are being extensively investigated to develop new materials for various applications including optoelectronic, energy storage, automotive, aerospace, filtration, and biomedical. In particular, strategies co control the morphology of the composites, and thus, their properties, and to lower the amount of fillers added to the polymers to turn them electrically conductive have been developped; more recently a new use for graphene as a processing aid agent has been suggested as it seems that adding graphene to a thermoplastic matrix can induce a decrease in the viscosity when added in low amounts. In this talk, we will show how through blending and annealing it is possible to reduce the quantity of commercial graphene to be added to thermoplastics to turn them conductive. In part, the influence of addition of graphene to high-density polyethylene (HDPE) will be addressed.