DuPont Teijin Films Mylar® RL42AT Polyester Packaging Film, 75 Gauge

Subcategory: Polyester, TP; Thermoplastic; Polymer

Key Words: DuPont Packaging Polymers

Material Notes:
Data provided by DuPont Packaging Polymers.

Mylar® RL42AT is a biaxially oriented polyester (OPET) film with an ethylene vinyl acetate (EVA) heat seal layer. It is used as a heat sealable lidding film in packaging frozen and refrigerated foods. Mylar® RL42AT is designed to produce strong seals to polypropylene (PP). Although designed especially to seal to polypropylene, Mylar® RL42AT seals to a broad range of container substrates including amorphous polyester (APET, also PETG), semicrystalline polyester (CPET), polyester coated paperboard, polyvinylchloride (PVC), polyethylene (HDPE), and polystyrene (HIPS). Mylar® RL42AT has the same heat seal layer thickness as Mylar® RL32, but produces a stronger seal to polypropylene. Mylar® RL42AT can produce tearing seals to polypropylene and other substrates under chilled conditions. Like the other "RL" types with EVA heat seal layer, Mylar® RL42AT has a lower seal initiation temperature than lidding films with an amorphous polyester heat seal layer (e.g., Mylar® OL, OL2). This allows good seals to be made at higher line speeds (or using lower sealing temperatures).

Mylar® RL42AF lidding film has anti-fogging capabilities to provide better clarity when stored and displayed in refrigerated conditions. Mylar® RL42AF has corona treatment on opposite side of film from the heat seal layer.