Mylar? Film Sheet (polyester film - PET Film) exhibits superior strength, heat resistance, and excellent insulating properties. The unique qualities of Mylar? film (PET Film) created new consumer markets in magnetic audio and video tape, capacitor dielectrics, packaging, and batteries. Sizes are expressed in INCHES unless otherwise Specified in Feet (FT) or Yards (YDS) CLEAR Mylar film (Type D) may be used for low-cost disposable medical face masks (splatter shields) during the COVID 19 outbreak (use .007", .010" OR .014" THICKNESS) The US Government is encouraging individuals to produce PPE (Personal Protective Equipment) items to meet the needs of the medical community. Mylar? Film Sheet is available in Two Standard Types: Mylar? D (CLEAR is Standard) is a clear, brilliant film which is surface treated on both sides to give superior slip characteristics & excellent handling properties Applications: Archival, Graphics, Safety Film, Decorating for laminates, Report covers, microfilm, layout base, membrane switches, protective glazing, labels, overhead transparancies, stationery supplies, graphic arts Pre-treatment: Slip Treated Approvals: Approved by the US Library of Congress for Archival and Conservation applications Note: Mylar D is also available in BLACK Color Mylar? A (Frosted, Milky White Translucent) (aka Electrical Grade Mylar) polyester film is a flexible strong and durable film with an unusual balance of properties. It is a translucent film. Because it contains no plasticizers it does not become brittle with age under normal conditions. Applications: It is used for release applications, office supplies, electrical insulation and industrial laminations with other flexible materials. Pre-treatment - No Pre-treatment For Thicknesses Greater than .014", see .020"+ Thick PET Film & Sheet