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.