Polyolefin (PO) post-consumer recyclaatfracties consist of a mixture of polypropylene (PP) .polyethyleen (PE) and a small amount of residual contaminants. They can be admixed in injection molding and extrusion, in "virgin" material to reduce material costs. Although these are recyclaatfracties to obtain already commercially, remains there for SME's existence a large threshold to switch to its interference with the existing production.