DuPont Teijin Films Mylar® WC11/WC22 Polyester Film, 300 Gauge

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DuPont Teijin Films Mylar® WC11/WC22 Polyester Film, 300 Gauge
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes:	Mylar® type WC11 films are general-purpose electrical grade films, similar to Mylar® EL. These clear to hazy films are tough and durable as a core wrap. They offer good dielectric and good handling characteristics. Mylar® type WC11 is a single layer of Mylar® WC base corrugated in the length direction. Mylar® type WC11G is a single layer of Mylar® WC base corrugated and also embossed with flat bands at 1/4" intervals in the transverse direction. Mylar® type WC22 is a dual layer of Mylar® WC base corrugated in the length direction. These modifications improve mechanical protection and serve as a heat barrier during extrusion coating of conductors. Mylar® type WC11 films combine the tensile strength, dimensional stability, and dielectric strength needed for wire and cable applications. Typical Applications: Mylar® Type WC11 films possess the characteristics required for wire and cable used in telecommunications and power transmission fields. Approvals: UL 94 VTM-2 - for 142 - 300 gauge (0.036 - 0.076 mm) Information provided by DuPont.
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Physical Properties	Metric	English	Comments

Density	1.39 g/cc	0.0502 lb/in³	Typical Mylar®; ASTM D1505
Thickness	76.2 microns	3.00 mil

Mechanical Properties	Metric	English	Comments
Film Elongation at Break, MD	135 %	135 %	ASTM D882A
Film Elongation at Break, TD	110 %	110 %	ASTM D882A
Film Tensile Strength at Break, MD	186 MPa	27000 psi	ASTM D882A
Film Tensile Strength at Break, TD	214 MPa	31000 psi	ASTM D882A

Electrical Properties	Metric	English	Comments
Dielectric Strength	131.2 kV/mm	3333 kV/in	1/4" electrode 500 V/sec 25°C in air; ASTM D149
Dielectric Breakdown	10000 V	10000 V	1/4" electrode 500 V/sec 25°C in air; ASTM D149

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
Shrinkage, MD	1.2 % @Temperature 150 °C, Time 1800 sec	1.2 % @Temperature 302 °F, Time 0.500 hour	Unrestrained
Shrinkage, TD	0.80 % @Temperature 150 °C, Time 1800 sec	0.80 % @Temperature 302 °F, Time 0.500 hour	Unrestrained

Optical Properties	Metric	English	Comments
Haze	29 %	29 %	ASTM D1003

Descriptive Properties
Yield (nominal)	6600 in²/lb

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PDTZ9439 / 139756

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