DuPont Teijin Films Mylar® LB Polyester Film, 48 Gauge (12 µm)

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DuPont Teijin Films Mylar® LB Polyester Film, 48 Gauge (12 µm)
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes:	Data provided by DuPont Packaging Polymers. An uncoated, transparent polyester film designed for use as a component of a lamination. Standard thickness offered include 48, 75, and 92 gauges. Varieties with enhanced surface characteristics for bonding by inks, primers, and adhesives. A basic lamination would combine plain or printed LB with a heat sealable ply consisting of LDPE, LLDPE, EVA, ionomer, acid copolymer, PVC, or other materials using adhesive or extrusion laminating techniques.
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Physical Properties	Original Value	Comments

Density	1.40 g/cc	Average value for Mylar® films.
Moisture Vapor Transmission	0.500 cc-mm/m²-24hr-atm	ASTM E96 Procedure E
Water Vapor Transmission	43.0 g/m²/day	ASTM E96 Procedure E
Oxygen Transmission	1.70 cc-mm/m²-24hr-atm	or 140 cc/m²-24hr-atm for the film. ASTM D3985
Thickness	12.0 microns

Mechanical Properties	Original Value	Comments
Film Elongation at Break, MD	110 %	ASTM D882
Film Elongation at Break, TD	80 %	ASTM D882
Modulus of Elasticity	3.79 GPa	(stiffness), ASTM D882
Tear Strength Test	300	Graves, g; ASTM D1004
Film Tensile Strength at Break, MD	186 MPa	ASTM D882
Film Tensile Strength at Break, TD	234 MPa	ASTM D882

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	121 °C	May be used to contain foods during baking above this temperature.
Shrinkage, MD	2.2 % @Temperature 150 °C, Time 1800 sec	Film shrinkage in oven.
Shrinkage, TD	1.3 % @Temperature 150 °C, Time 1800 sec	Film shrinkage in oven.

Optical Properties	Original Value	Comments
Haze	4.5 %	ASTM D1003
Gloss	200 %	20°; ASTM D2457
Transmission, Visible	76 %	% Clarity; ASTM D1746

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PDU656 / 33105

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