Plastic Materials Identification codes
Packaging applications
Soft drink, water and salad dressing bottles; peanut butter and jam jars
HDPE
Properties - Stiffness, strength, toughness, resistance to moisture, permeability to gas.
Packaging applications
Milk, juice and water bottles; trash and retail bags.
PVC (polyvinyl chloride)
Properties-Versatility, clarity, ease of blending, strength, toughness.
Packaging applications
Juice bottles; cling films; PVC piping
LDPE (Low density Polyethylene)
Properties-Ease of processing, strength, toughness, flexibility, ease of sealing, barrier to moisture.
Packaging applications
Frozen food bags; squeezable bottles, e.g. honey, mustard; cling films; flexible container lids.
PP (poly propylene)
Properties-Strength, toughness, resistance to heat, chemicals, grease and oil, versatile, barrier to moisture.
Packaging applications
Reusable microwaveable ware; kitchenware; yogurt containers; margarine tubs; microwaveable disposable take-away containers; disposable cups and plates.
PS (Poly Styrene)
Properties-Versatility, clarity, easily formed
Packaging applications
Egg cartons; packing peanuts; disposable cups, plates, trays and cutlery; disposable take-away containers;
Properties-Dependent on polymers or combination of polymers
Packaging applications
Beverage bottles; baby milk bottles; electronic casing.
PET
Properties- Clarity, strength, toughness, barrier to gas and moisture.Packaging applications
Soft drink, water and salad dressing bottles; peanut butter and jam jars
Properties - Stiffness, strength, toughness, resistance to moisture, permeability to gas.
Packaging applications
Milk, juice and water bottles; trash and retail bags.
PVC (polyvinyl chloride)
Properties-Versatility, clarity, ease of blending, strength, toughness.
Packaging applications
Juice bottles; cling films; PVC piping
Properties-Ease of processing, strength, toughness, flexibility, ease of sealing, barrier to moisture.
Packaging applications
Frozen food bags; squeezable bottles, e.g. honey, mustard; cling films; flexible container lids.
Properties-Strength, toughness, resistance to heat, chemicals, grease and oil, versatile, barrier to moisture.
Packaging applications
Reusable microwaveable ware; kitchenware; yogurt containers; margarine tubs; microwaveable disposable take-away containers; disposable cups and plates.
Properties-Versatility, clarity, easily formed
Packaging applications
Egg cartons; packing peanuts; disposable cups, plates, trays and cutlery; disposable take-away containers;
Other (Polycarbonate or ABS) 
Properties-Dependent on polymers or combination of polymers
Packaging applications
Beverage bottles; baby milk bottles; electronic casing.
