Hot And Cold PET

Polyethylene terephthalate, more commonly known as PET, is a lightweight clear plastic that's used for countless packaging applications. One of the world's most well-known plastics, PET was first synthesized in the mid-40s by DuPont chemists who were trying to create polymers that could be used to make textile fibers.

A decade later, researchers developed a way to stretch PET thin, allowing the material to be used in packaging film, video and X-ray film, and more. In the early 1970s, new technology allowed PET to be molded into strong, lightweight, shatterproof material, and PET's reign as the leading plastic for food packaging began.

Now, PET is one of the most commonly used materials in the world. More than half of the world's synthetic fiber is made from PET, and almost all soft drink and water bottles sold in the United States contain PET. Here's everything you need to know about this incredibly popular plastic.

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