Recycling Plastic

Plastic Identification

Symbols are used to identify important commercial polymers used in packaging. The symbol consists of a number inside a triangle. This symbol is normally found near or on the bottom of the container. However on coffee cup lids the symbol is found on the top.

Symbol Name Rotating molecule Examples
 

 

 

 

Polyethylene terephthalate Plastic bottles, meat packaging
 

 

 

 

High density polyethylene Milk bottles, detergent bottles, oil bottles, toys, plastic bags
 

 

 

 

Polyvinyl chloride Vegetable oil bottles, blister packaging
 

 

 

 

Low density polyethylene Plastic bags, shrink-wrap
 

 

 

 

Polypropylene Margarine containers, yoghurt containers
 

 

 

 

Polystyrene Egg cartons, fast food trays
 

 

 

 

All other resins, for example, PMMA in the cell to the right Multi-resin containers, microelectronic components

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