DuPont Teijin Films Mylar® 850H Polyester Film, 48 Gauge

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DuPont Teijin Films Mylar® 850H Polyester Film, 48 Gauge
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes:	Mylar® 850H (also called Mylar® 850) is a co-extruded, one side amorphous, heat sealable polyester film designed to be used in metallized, print, and lamination applications. This film is suitable for use in contact with food. Approvals: FDA Food Contact Status - All gauges of Mylar® 850H (or 850) 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. Uncoated films such as Mylar® 850H (or 850) 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
Water Vapor Transmission	2.80 g/100 in²/day @Temperature 38.0 °C	90% RH; ASTM F1249
Thickness	0.480 mil

Mechanical Properties	Original Value	Comments
Film Elongation at Break, MD	100 %	ASTM D882A
Film Elongation at Break, TD	90 %	ASTM D882A
Coefficient of Friction, Dynamic	0.50	A-B; ASTM D1894
Film Tensile Strength at Break, MD	27000 psi	ASTM D882A
Film Tensile Strength at Break, TD	29000 psi	ASTM D882A
Heat Seal Strength Initiation Temperature	220 - 400 °F

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
Shrinkage, MD	1.25 % @Temperature 150 °C, Time 1800 sec	Unrestrained
Shrinkage, TD	0.30 % @Temperature 150 °C, Time 1800 sec	Unrestrained

Optical Properties	Original Value	Comments
Refractive Index	1.64 - 1.67	typical of Mylar®
Transmission, Visible	88.7 %	TLT; ASTM D1003

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

Descriptive Properties
Gas Permeability (Base film)	6.0 cc/100 in²	O2, 24 hr; ASTM D1434 (77°F/75% RH/1 ATM)
Yield (nominal)	42200 in²/lb

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PDTZ9269 / 139591

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