As many of you are aware, PET beverage containers are often wrapped with PET-G (or sometimes polyvinyl chloride aka PVC) shrink-sleeve labels. The problem is that the labels are contaminants in the recycling process. They have a density higher than water and can’t be separated from PET flakes during the sink-float separation step of the recycling process. Thus, they contaminate the recycled PET stream and reduce the quality of recycled PET (rPET).