Posted on January 28, 2016January 28, 2016 by Staff Copyright ESKPKG.com is a copyright of ESP Packaging LLC. all rights reserved. ‘Mylar’ is used on this site both to refer to the Trademarked Mylar brand owned by Dupont, and used in its generic form to refer films containing PET Polyethylene Terephthalate. Post navigationPrevious post: Terms and ConditionsNext post: Shipping and Lead Times