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DuPont Teijin Films Mylar® WC11/WC22 Polyester Film, 142 Gauge

Category Polymer , Film , Thermoplastic , Polyester, TP , Polyester Film
Manufacturer DuPont Teijin Films (DTF)
Trade Name Mylar®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont Teijin Films Mylar® WC11/WC22 Polyester Film, 142 Gauge.pdf
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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.
Physical Properties Metric English Comments
Density 1.39 g/cc
0.0502 lb/in³
Typical Mylar®; ASTM D1505
Mechanical Properties Metric English Comments
Film Elongation at Break, MD 125 %
125 %
ASTM D882A
Film Elongation at Break, TD 100 %
100 %
ASTM D882A
Film Tensile Strength at Break, MD 193 MPa
28000 psi
ASTM D882A
Film Tensile Strength at Break, TD 234 MPa
34000 psi
ASTM D882A
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 1.5 %

@Temperature 150 °C,
Time 1800 sec
1.5 %

@Temperature 302 °F,
Time 0.500 hour
Unrestrained
Shrinkage, TD 1.0 %

@Temperature 150 °C,
Time 1800 sec
1.0 %

@Temperature 302 °F,
Time 0.500 hour
Unrestrained
Optical Properties Metric English Comments
Haze 18 %
18 %
ASTM D1003
Electrical Properties Metric English Comments
Dielectric Strength 152.5 kV/mm
3873 kV/in
1/4" electrode 500 V/sec 25°C in air; ASTM D149
Dielectric Breakdown 5500 V
5500 V
1/4" electrode 500 V/sec 25°C in air; ASTM D149
Descriptive Properties Value Comments
Yield (nominal) 1400 in2/lb
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