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Mylar® OWF is a co-extruded, one side amorphous, heat sealable polyester film designed to be used as an overwrap film. This film is suitable for use in contact with food.
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Food Contact Status -
Please contact your Mylar® Specialty Films representative to receive the Regulatory Compliance documents
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| Available Thickness [Gauge] |
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48; 80; 120
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| Property |
Thickness |
Value |
Units |
Test |
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BARRIER
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| Gas Permeability - O2, 24 hr |
48 |
6.0 |
cc/100 in² |
ASTM D1434 77℉/75% RH/1 ATM |
| Gas Permeability - O2, 24 hr |
80 |
3.7 |
cc/100 in² |
ASTM D1434 77℉/75% RH/1 ATM |
| Gas Permeability - O2, 24 hr |
120 |
2.5 |
cc/100 in² |
ASTM D1434 77℉/75% RH/1 ATM |
| WVTR |
48 |
2.8 |
g/100 in²/day |
ASTM F1249 38℃, 90% RH |
| WVTR |
80 |
1.8 |
g/100 in²/day |
ASTM F1249 38℃, 90% RH |
| WVTR |
120 |
1.1 |
g/100 in²/day |
ASTM F1249 38℃, 90% RH |
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OPTICAL
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| Haze |
48 |
3.0 |
% |
ASTM D1003 |
| Haze |
80 |
4.5 |
% |
ASTM D1003 |
| Haze |
120 |
6.0 |
% |
ASTM D1003 |
| Total Light Transmission (TLT) |
48 |
88.7 |
% |
ASTM D1003 |
| Total Light Transmission (TLT) |
80 |
88.6 |
% |
ASTM D1003 |
| Total Light Transmission (TLT) |
120 |
88.5 |
% |
ASTM D1003 |
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PHYSICAL
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| C.O.F. (dynamic) A-B |
48 - 80 |
0.5 |
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ASTM D1894 |
| Density |
48 - 80 |
1.40 |
g/cc |
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| Elongation at Break MD |
48 - 80 |
100 |
% |
ASTM D882A |
| Elongation at Break TD |
48 - 80 |
90 |
% |
ASTM D882A |
| Tensile Strength MD |
48 - 80 |
27 |
kpsi |
ASTM D882A |
| Tensile Strength TD |
48 - 80 |
29 |
kpsi |
ASTM D882A |
| Yield (nominal) |
48 |
42,200 |
in²/lb |
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| Yield (nominal) |
80 |
24,800 |
in²/lb |
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| Yield (nominal) |
120 |
16,500 |
in²/lb |
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THERMAL
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| Heat Seal Temp. Range |
48 - 80 |
220-400 |
°F |
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| Shrinkage MD (150℃) |
48 - 80 |
1.25 |
% |
Unrestrained @ 150℃/30 min |
| Shrinkage MD (150℃) |
120 |
1.5 |
% |
Unrestrained @ 150℃/30 min |
| Shrinkage TD (150℃) |
48 - 80 |
0.30 |
% |
Unrestrained @ 150℃/30 min |
| Shrinkage TD (150℃) |
120 |
1.5 |
% |
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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