DuPont Teijin Films Melinex® ST504 Polyester Film, 700 Gauge

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DuPont Teijin Films Melinex® ST504 Polyester Film, 700 Gauge
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes:	Melinex® ST504 is a crystal clear, high gloss, heat stabilized polyester film. It can be overprinted with a wide range of solvent-based graphic inks and varnishes, silver conductive and dielectric inks. It is ideally suited for graphic and certain circuitry layers in membrane touch switches. Melinex® ST504 is pretreated on one side to promote adhesion. Information provided by DuPont.
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Physical Properties	Original Value	Comments

Thickness	7.00 mil

Mechanical Properties	Original Value	Comments
Flex Crack Resistance	>= 15000	Cycles; ASTM D2176
Coefficient of Friction, Static	<= 0.60	ASTM D1894

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+17 ohm-cm	ASTM D257
Surface Resistivity per Square	1.00e+13 ohm	ASTM D257
Dielectric Constant	2.9	ASTM D150
Dielectric Strength	3000 V/mil	ASTM D149

Thermal Properties	Original Value	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 50.0 °C
Melting Point	493 °F
Shrinkage, MD	0.15 % @Temperature 150 °C, Time 1800 sec	Unrestrained
Shrinkage, TD	0.15 % @Temperature 150 °C, Time 1800 sec	Unrestrained

Optical Properties	Original Value	Comments
Haze	1.0 %	ASTM D1003
Gloss	140 %	60°; ASTM D1003
Transmission, Visible	>= 85 %	TLT; ASTM D1003

Descriptive Properties
Coefficient of Hygroscopic Expansion	0.000006 IN/IN/% RH	40% - 80% RH

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