DuPont Teijin Films Mylar® 850H Polyester Film, 80 Gauge

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DuPont Teijin Films Mylar® 850H Polyester Film, 80 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	Metric	English	Comments

Density	1.40 g/cc	0.0506 lb/in³
Water Vapor Transmission	27.9 g/m²/day @Temperature 38.0 °C	1.80 g/100 in²/day @Temperature 100 °F	90% RH; ASTM F1249
Thickness	20.3 microns	0.800 mil

Mechanical Properties	Metric	English	Comments
Film Elongation at Break, MD	100 %	100 %	ASTM D882A
Film Elongation at Break, TD	90 %	90 %	ASTM D882A
Coefficient of Friction, Dynamic	0.50	0.50	A-B; ASTM D1894
Film Tensile Strength at Break, MD	186 MPa	27000 psi	ASTM D882A
Film Tensile Strength at Break, TD	200 MPa	29000 psi	ASTM D882A
Heat Seal Strength Initiation Temperature	104 - 204 °C	220 - 400 °F

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	1.17 J/g-°C	0.280 BTU/lb-°F	Typical Mylar®
Melting Point	254 °C	489 °F	Typical Mylar® via DSC
Maximum Service Temperature, Air	121 °C	250 °F
Shrinkage, MD	1.25 % @Temperature 150 °C, Time 1800 sec	1.25 % @Temperature 302 °F, Time 0.500 hour	Unrestrained
Shrinkage, TD	0.30 % @Temperature 150 °C, Time 1800 sec	0.30 % @Temperature 302 °F, Time 0.500 hour	Unrestrained

Optical Properties	Metric	English	Comments
Refractive Index	1.64 - 1.67	1.64 - 1.67	typical of Mylar®
Transmission, Visible	88.6 %	88.6 %	TLT; ASTM D1003

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	See notes for details.

Descriptive Properties
Gas Permeability (Base film)	3.7 cc/100 in²		O2, 24 hr; ASTM D1434 (77°F/75% RH/1 ATM)
Yield (nominal)	24800 in²/lb

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PDTZ9270 / 139592

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