DuPont Teijin Films Mylar® RB52 Polyester Packaging Film, 100 Gauge

Subcategory: Polyester, TP; Thermoplastic; Polymer

Key Words: DuPont Packaging Polymers

Material Notes:
Data provided by DuPont Packaging Polymers.

Mylar® RB52 is a biaxially oriented polyester (OPET) film with an ethylene vinyl acetate (EVA) heat seal layer and a polyvinylidene chloride (PVDC) layer on the opposite side of the film from the EVA heat seal layer. Mylar® RB52 is essentially Mylar® RL52 with a barrier layer. It is used as a heat sealable lidding film in packaging frozen and refrigerated foods.

Mylar® RB52 is designed to seal to a broad range of container substrates including amorphous polyester (APET, also PETG), semicrystalline polyester (CPET), polyester coated paperboard, polyvinylchloride (PVC), polyethylene (HDPE), polypropylene (PP), and polystyrene (HIPS). Mylar® RB52 has the same type heat seal layer as Mylar® RL51, but the thickness of the heat seal layer and the heat seal strengths of Mylar® RB52 are intermediate between Mylar® RL51 and Mylar® RL53. RB52 produces more ductile seals under refrigerated or frozen conditions and seals better to polystyrene containers than either RL32 or RL42. Like RL51, Mylar® RB52 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).