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Master Bond adhesives

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DuPont Teijin Films Mylar® EC Polyester Film, 400 Gauge
Categories: Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes: Mylar® EC films are electrical grade films designed for use in applications where improved dimensional stability is required. In addition to lower levels of shrinkage, Mylar® EC films offer outstanding durability, chemical inertness, good dielectrics, and good handling characteristics.

General Product Info: The outstanding strength, flexibility, and electrical properties of Mylar® EC films, combined with lower than normal shrinkage levels, make them especially suited for circuitry and membrane touch switch applications. The film's moisture and chemical resistance serve as a barrier to substances that could contaminate membrane touch switches.

Typical Applications: The unique balance of properties offered by Mylar® EC films makes them ideal for membrane switches and flexible circuits used in a variety of consumer and industrial products, including automotive instrument clusters, computers, calculators, telephones, cameras, and appliances.

Approvals: UL 94 VTM-2 - for 200 - 500 gauge (0.05 - 0.13mm)

Information provided by DuPont.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 1.39 g/ccTypical Mylar®; ASTM D1505
Thickness 4.00 mil
 
Mechanical PropertiesOriginal ValueComments
Film Elongation at Break, MD 150 %ASTM D882A
Film Elongation at Break, TD 140 %ASTM D882A
Film Tensile Strength at Break, MD 24000 psiASTM D882A
Film Tensile Strength at Break, TD 26000 psiASTM D882A
 
Electrical PropertiesOriginal ValueComments
Dielectric Strength 2925 V/mil1/4" electrode 500 V/sec 25°C in air; ASTM D149
Dielectric Breakdown 11700 V1/4" electrode 500 V/sec 25°C in air; ASTM D149
 
Thermal PropertiesOriginal ValueComments
Specific Heat Capacity 1.17 J/g-°CTypical Mylar®
Melting Point 254 °CTypical Mylar® via DSC
Shrinkage, MD 0.60 %
@Temperature 150 °C,
Time 1800 sec		Unrestrained
Shrinkage, TD 0.20 %
@Temperature 150 °C,
Time 1800 sec		Unrestrained
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.64 - 1.67typical of Mylar®
Haze 26 %ASTM D1003
 
Descriptive Properties
Yield (nominal)5000 in2/lb

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PDTZ9316 / 139636




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