Monday, July 18, 2011

Plastic Resin Information : Polypropylene (PP)

Polypropylene, like HDPE, LDPE and PET, are considered safe for food. Many food containers are made of polypropylene. To know whether the plastic container you are holding now is made of PP, look at the bottom of the container. If it says number 5, just like the symbol you see on the right, be sure that this is the right container to use for your food.

General Facts :
PP is one of the thermal plastics that is deemed safe for contact with food products. In many ways, it is almost similar with HDPE but with higher melting point. You can find PP in most food or non-food packaging due to its durability as well as great performance on resisting chemicals and moistures.

Characteristic :
Resistant to moisture and oil, stiff, opaque in color, durable though easy to break or scratch, unable to withstand cold.

Compatibility:
PP is good to contain food.

Storage Temperature:
PP’s fill temperature can reach up to 175°F.

Recycling Information :
Polypropylene is normally accepted by recycling companies, though the colored bottles will likely get a rejection from them. Recycled products can be of container lids, ring binders, etc.

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