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Resin identification code (1 (Polyethylene Terephthalate (PET, PETE)…
Resin identification code
1
Polyethylene Terephthalate (PET,
PETE)
Properties
Clarity
strength
toughness
barrier to
gas and moisture
Common Packaging Applications
peanut butter and jam jars
Soft drink, water and salad dressing
bottles
7
Other (often polycarbonate or ABS)
Common Packaging Applications
baby milk bottles
electronic casing
Beverage bottles
Properties
Dependent on
polymers or
combination of
polymers
3
Polyvinyl Chloride (PVC)
Properties
ease
of blending
strength
clarity
toughness
Versatility
Common Packaging Applications
cling films
PVC piping
Juice bottles
5
Polypropylene (PP)
Properties
chemicals
grease and
oil
resistance to heat
versatile
toughness
barrier to
moisture.
Strength
Common Packaging Applications
yogurt containers
margarine tubs
kitchenware
disposable cups and plates
Reusable microwaveable ware
microwaveable
disposable take-away containers
6
Polystyrene (PS)
Properties
clarity
easily formed
Versatility
Common Packaging Applications
packing peanuts
disposable cups, plates, trays and
cutlery
disposable take-away
containers
Egg cartons
2
High Density Polyethylene (HDPE)
Common Packaging Applications
Water pipes, Hula-Hoop (children's
game) rings, Milk, juice and water
bottles
the occasional shampoo /
toiletry bottle
Properties
toughness
strength
resistance
to moisture
Stiffness
permeability to gas.
4
Low Density Polyethylene (LDPE)
Properties
flexibility
ease of sealing
toughness
barrier to moisture
strength
Ease of processing
Common Packaging Applications
Frozen food bags
squeezable bottles