The impact energy required to fracture all the WPCs prepared from freshfeed, scrap and their mixture in Part 1 is demonstrated in Fig. 3. The impact energy of all the profiles remained rather constant and closes in value to that of the WPC from freshfeed. Fig. 4a shows the plot of the impact energy required to fracture the WPC re-extruded from the mixture of WPC scrap:WPC freshfeed at 30:70 against the number of recycling passes. Despite the several passes of re-extrusion, the impact energy of all the re-processed profiles was found to also remain relatively unchanged. This was confirmed by a set of results on the impact energy of the same WPCs assessed by the weight dropping apparatus as shown in Fig. 5 and Table 1. The mild deterioration of the mechanical properties and the impact energy upon each recycling pass suggested that close-loop recycling of the 30:70 of WPC scrap:WPC freshfeed formulation was highly probable for several re-processing passes.