For Post Consumer Recycled (PCR) Polypropylene (PP), distributors mostly offer injection type PCR PPs with high melt-flow rates (MFR) and low melt viscosity. This is not favoured for extrusion applications, where low MFR values and sufficiently high melt strengths are required. Irradiation of PCR-PP with e-Beam offers a strategy to decrease the MFR and increase the melt viscosity.