Each different density of polyethylene gives the final plastic unique physical properties.
Different kinds of plastic bottles.
Pet plastic water bottle.
Spi codes for plastics help you better understand the products you re using and how they affect your health and the environment.
Polyethylene pe the most common plastic on earth polyethylene can be manufactured in varying densities.
It is used predominantly as a fiber known by the trade name polyester and for bottling or packaging.
Hdpe plastic is the stiff plastic used to make milk jugs detergent and oil bottles toys and some plastic bags.
The numbers reflecting the 7 different types of plastic available in the market are found on the 299 million tons of plastic that is produced annually to make water bottles sports equipment medical devices dvd s and basically any other plastic you can think of.
For example pet is the plastic used for bottled water and is highly recyclable.
Pvc is typically used in toys blister wrap cling wrap detergent bottles loose leaf binders blood bags and medical tubing.
It is a relatively simple and cost effective process to recycle hdpe plastic for secondary use.
Pvc or vinyl used to be the second most widely used plastic resin in the world after polyethylene before the manufacture and disposal process of pvc has been declared as the cause of serious health risks and environmental pollution issues.
Pet is the most widely produced plastic in the world.
While the plastic resin codes don t necessarily indicate the toxins used in the plastics they are useful for distinguishing between the different kinds of plastics.