Songhan Plastic Technology Co.,Ltd.

DuPont Teijin Films Mylar® RL4 Polyester Packaging Film, 75 Gauge

Category Polymer , Film , Thermoplastic , Polyester, TP , Polyester Film
Manufacturer DuPont Teijin Films (DTF)
Trade Name Mylar®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont Teijin Films Mylar® RL4 Polyester Packaging Film, 75 Gauge.pdf
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Material Notes:
Data provided by DuPont Packaging Polymers.Mylar® RL4 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® RL4 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). The thickness of the heat seal layer and the heat seal strength of Mylar® RL4 is intermediate between Mylar® RL31 and Mylar® RL33. Mylar® RL4 and Mylar® RL32 produce similar heat seal strengths to most substrates, but Mylar® RL32 has a greater tendency to produce tearing seals while Mylar® RL4 tends to produce more peelable seals. Mylar® RL4 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 0.750 cc-mm/m²-24hr-atm
1.90 cc-mil/100 in²-24hr-atm
Proc. E; ASTM E96
Oxygen Transmission 2.76 cc-mm/m²-24hr-atm
7.01 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 %
Film Elongation at Break, TD 80 %
80 %
Secant Modulus 3.79 GPa
550 ksi
Stiffness Modulus; ASTM D882
Tear Strength Test 1.9
lb Graves; ASTM D1004
Film Tensile Strength at Break, MD 172 MPa
24900 psi
Film Tensile Strength at Break, TD 241 MPa
35000 psi
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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