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Plastic Packaging Recycling Codes and Typical Plastic Properties     Polyethylene Terephthalate (PET) High Density Polyethylene (HDPE) Polyvinyl Chloride (PVC) Low Density Polyethylene (LDPE) Polypropylene (PP) Polystyrene (PS) Other Plastics Properties Clarity Clear Translucent Clear Translucent Translucent Clear Plastic ID Code "7" is for other plastics Moisture Barrier Fair to Good Good to Excellent Fair Good Good to Excellent Poor to Fair Oxygen Barrier Good Poor Good Poor Poor Fair Max. Temperature 120F 145F 140F 120F 165F 150F Rigidity Moderate to High Moderate Moderate to High Low Moderate to High Moderate to High Resistance to Impact Good to Excellent Good to Excellent Fair to Good Excellent Poor to Good Poor to Good Resistance to Heat Poor to fair Good Poor to Fair Fair Good Fair Resistance to Cold Good Excellent Fair Excellent Poor to Fair Poor Resistance to Sunlight Good Fair Poor to Good Fair Fair Poor to Fair