DuPont Teijin Films Mylar® M34 Polyester Film, 75 Gauge (20 µm), PVDC Coated

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DuPont Teijin Films Mylar® M34 Polyester Film, 75 Gauge (20 µm), PVDC Coated
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyvinyl Dichloride (PVDC); Polyvinyl Dichloride (PVDC) Coated Polyester Film
Material Notes:	Data provided by DuPont Packaging Polymers. A transparent polyester packaging film, solvent coated on one side with a PVDC copolymer. The coating is heat sealable, and is an excellent moisture and oxygen barrier. Available in 50 and 75 gauges, with the coated side normally wound toward the core. Designed to be reverse printed on the coated side, then combined with a sealant layer such as polyethylene or Surlyn® ionomer resin - locking in the PVDC coating.
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Physical Properties	Original Value	Comments

Density	1.40 g/cc	Average value for Mylar® films.
Moisture Vapor Transmission	0.180 cc-mm/m²-24hr-atm	ASTM E96 Procedure E
Water Vapor Transmission	9.00 g/m²/day	ASTM E96 Procedure E
Oxygen Transmission	0.200 cc-mm/m²-24hr-atm	or 9 cc/m²-24hr-atm for the film. ASTM D3985
Thickness	20.0 microns

Mechanical Properties	Original Value	Comments
Film Elongation at Break, MD	130 %	ASTM D882
Film Elongation at Break, TD	70 %	ASTM D882
Modulus of Elasticity	3.45 GPa	(stiffness), ASTM D882
Tear Strength Test	400	Graves, g; ASTM D1004
Seal Strength	156 g/25 mm
Film Tensile Strength at Break, MD	172 MPa	ASTM D882
Film Tensile Strength at Break, TD	228 MPa	ASTM D882

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	121 °C	Not cleared by FDA for food temperatures above this temperature.
Shrinkage	2.0 % @Temperature 150 °C, Time 1800 sec	Film shrinkage in oven.

Optical Properties	Original Value	Comments
Haze	8.0 %	ASTM D1003
Gloss	140 %	20°; ASTM D2457
Transmission, Visible	90 %	transparent; thickness not quantified

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PDU663 / 33112

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