Mylar

Mylar, (trademark), a versatile plastic film composed of the polyester polyethylene terephthalate.

This article was most recently revised and updated by Adam Augustyn.

Citation Information

Article Title: Mylar

Website Name: Encyclopaedia Britannica

Publisher: Encyclopaedia Britannica, Inc.

Date Published: 20 December 2021

Access Date: December 26, 2025