MYLAR® OWF

Product Description
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.



Approvals
Food Contact Status - Please contact your Mylar® Specialty Films representative to receive the Regulatory Compliance documents



Typical Properties
Available Thickness [Gauge]
48;    80;    120


Property Thickness Value Units Test
BARRIER
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 
 
OPTICAL
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 
 
PHYSICAL
C.O.F. (dynamic) A-B  48 - 80  0.5    ASTM D1894 
Density  48 - 80  1.40  g/cc   
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   
Yield (nominal)  80  24,800  in²/lb   
Yield (nominal)  120  16,500  in²/lb   
 
THERMAL
Heat Seal Temp. Range  48 - 80  220-400  °F   
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 



Contact Info
Mylar® Specialty Films U.S. Limited Partnership
3600 Discovery Drive
Chester, VA 23836-6436 USA
Tel: (800) 635-4639
Fax: (804) 530-9867



Disclaimer
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.