DuPont Teijin Films Mylar® 834 Polyester Film, 48 Gauge

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DuPont Teijin Films Mylar® 834 Polyester Film, 48 Gauge
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes:	Mylar® 834 is a packaging grade polyester film, chemically pretreated on one side for controlled COF and release. Approvals: FDA Food Contact Status - All gauges of Mylar® 834 comply with the Food and Drug Administration regulation 21 CFR 177.1630 -- Polyethylene phthalate polymers. This regulation describes films which may be safely used in contact with all types of food excluding alcoholic beverages. Mylar® 834 can be used to contain foods during oven cooking or oven baking at temperatures above 250°F. Information provided by DuPont.
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Physical Properties	Original Value	Comments

Density	1.40 g/cc
Thickness	0.480 mil

Mechanical Properties	Original Value	Comments
Film Elongation at Break, MD	110 %	ASTM D882A
Film Elongation at Break, TD	70 %	ASTM D882A
Coefficient of Friction, Static	0.30	ASTM D1894
Film Tensile Strength at Break, MD	32200 psi	ASTM D882A
Film Tensile Strength at Break, TD	39000 psi	ASTM D882A

Thermal Properties	Original Value	Comments
Specific Heat Capacity	1.17 J/g-°C	Typical Mylar®
Melting Point	254 °C	Typical Mylar® via DSC
Maximum Service Temperature, Air	250 °F

Optical Properties	Original Value	Comments
Refractive Index	1.64 - 1.67	typical of Mylar®
Haze	3.6 %	ASTM D1003

Compliance Properties	Original Value	Comments
FDA	Yes	See notes for details.

Descriptive Properties
Yield (nominal)	42200 in²/lb

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PDTZ9267 / 139589

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