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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.
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| Available Thickness [Gauge] |
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500; 700
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| Property |
Thickness |
Value |
Units |
Test |
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ELECTRICAL
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| Dielectric Constant |
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2.9 |
|
ASTM D150 |
| Dielectric Strength |
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3,000 |
volts/mil |
ASTM D149 |
| Surface Resistivity |
|
10^13 |
Ohms/sq |
ASTM D257 |
| Volume Resistivity |
|
10^17 |
Ohms-cm |
ASTM D257 |
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|
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OPTICAL
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| Gloss 60 Degrees |
500 |
140 |
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ASTM D1003 |
| Gloss 60 Degrees |
700 |
140 |
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ASTM D1003 |
| Haze |
500 |
0.8 |
% |
ASTM D1003 |
| Haze |
700 |
1.0 |
% |
ASTM D1003 |
| Total Light Transmission (TLT) |
500 |
>85 |
% |
ASTM D1003 |
| Total Light Transmission (TLT) |
700 |
>85 |
% |
ASTM D1003 |
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PHYSICAL
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| C.O.F. (static) |
|
<0.6 |
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ASTM D1894 |
| Flexural Strength |
500 |
>20,000 |
cycles |
ASTM D2176 |
| Flexural Strength |
700 |
>15,000 |
cycles |
ASTM D2176 |
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THERMAL
|
| Coefficient of Hygroscopic Expansion |
|
6X10^-6 |
IN/IN/% RH |
40% - 80% RH |
| Coefficient of Thermal Expansion |
|
10X10^-6 |
in/in/°F |
(68 - 122 ℉) |
| Melting Point |
|
265 |
℃ |
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| Shrinkage MD (150℃) |
500 - 700 |
0.04 |
% |
Unrestrained @ 150℃/30 min |
| Shrinkage TD (150℃) |
500 - 700 |
0.00 |
% |
Unrestrained @ 150℃/30 min |
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Mylar® Specialty Films U.S. Limited Partnership
3600 Discovery Drive
Chester, VA 23836-6436 USA
Tel: (800) 635-4639
Fax: (804) 530-9867
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Note: These values are typical performance data for Mylar® Specialty Films' polyester film; they are not intended to be used as design data. We believe this information is the best currently available on the subject. It is offered as a possible helpful suggestion in experimentation you may care to undertake along these lines. It is subject to revision as additional knowledge and experience is gained. Mylar® Specialty Films makes no guarantee of results and assumes no obligation or liability whatsoever in connection with this information. This publication is not a license to operate under, or intended to suggest infringement of, any existing patents.
CAUTION: Do not use in medical applications involving permanent implantation in the human body (Mylar® Specialty Films Medical Policy). For other medical applications, see the Medical Caution Statement. Mylar® Specialty Films accepts no liability for use of it's products in medical applications not reviewed and approved by Mylar® Specialty Films or for product misuse. Mylar® Specialty Films supplies products to an agreed specification and does not manufacture products designed specifically for medical end use.
Melinex®, Mylar® and Melinex® STTM are registered trademarks of Mylar® Specialty Films U.S. Limited Partnership.
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