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DuPont Teijin Films Mylar® RL42 Polyester Packaging Film, 75 Gauge

Category Polymer , Film , Thermoplastic , Polyester, TP , Polyester Film
Manufacturer DuPont Teijin Films (DTF)
Trade Name Mylar®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont Teijin Films Mylar® RL42 Polyester Packaging Film, 75 Gauge.pdf
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Material Notes:
Data provided by DuPont Packaging Polymers.Mylar® RL42 (formerly known as XM985) 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® RL42 is designed to produce strong seals to polypropylene (PP). Although designed especially to seal to polypropylene, Mylar® RL42 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® RL42 has the same heat seal layer thickness as Mylar® RL32, but produces a stronger seal to polypropylene. Mylar® RL42 can produce tearing seals to polypropylene and other substrates under chilled conditions. Like the other "RL" types with EVA heat seal layer, Mylar® RL42 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).
Physical Properties Metric English Comments
Density 1.30 g/cc
0.0470 lb/in³
Calculated from nominal thickness and yield
Moisture Vapor Transmission 0.0800 cc-mm/m²-24hr-atm
0.203 cc-mil/100 in²-24hr-atm
Proc. E; ASTM E96
Oxygen Transmission 0.280 cc-mm/m²-24hr-atm
0.711 cc-mil/100 in²-24hr-atm
Tested per ASTM D3985 at 22°C
Mechanical Properties Metric English Comments
Film Elongation at Break, MD 110 %
110 %
ASTM D882
Film Elongation at Break, TD 80 %
80 %
ASTM D882
Secant Modulus 3.79 GPa
550 ksi
Stiffness Modulus; ASTM D882
Tear Strength Test 0.90
0.90
lb Graves; ASTM D1004
Film Tensile Strength at Break, MD 172 MPa
24900 psi
ASTM D882
Film Tensile Strength at Break, TD 241 MPa
35000 psi
ASTM D882
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 121 °C
250 °F
Minimum Service Temperature, Air -40.0 °C
-40.0 °F
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