http://www.adorama.com/alc/taginfo/Stecker <p><span style="font-size: small;">Mylar is the trademarked name for a specific type of polyester film. It's used in packaging for a wide variety of products and comes in a host of colors, finishes, thicknesses, and sizes. But what's good for potato-chip bags is not good for creative photography.</span></p> http://www.adorama.com/alc/article/8107