MYLAR® 840

Product Description

Mylar® 840 is a one-side pretreated polyester film for improved metal or cold seal adhesion. The packaging industry is constantly setting higher standards for product protection using flexible packaging films. Improved barriers as well as package strength and stiffness are key characteristics of Mylar® 840 polyester which has made it a premier packaging film.

Approvals

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

Typical Properties

Available Thickness [Gauge] 48

Property Thickness Value Units Test BARRIER Gas Permeability - Carbon Dioxide  48  31.0  cc/100 in²  ASTM D1434 (24 hrs @ 77℉ and 75% RH @ 1 ATM)  Gas Permeability - Nitrogen  48  1.6  cc/100 in²  ASTM D1434 (24 hrs @ 77℉ and 75% RH @ 1 ATM)    OPTICAL Total Light Transmission (TLT)  48  88.5  %  ASTM D1003    PHYSICAL Bond Strength @ Ambient Conditions (metallized)  48  750  g  77℉ and 50% RH  C.O.F. (dynamic) A-B  48  0.4    ASTM D1894  C.O.F. (static)  48  0.5    ASTM D1894  Density  48  1.40  g/cc    Elongation at Break MD  48  110  %  ASTM D882A  Elongation at Break TD  48  80  %  ASTM D882A  Tensile Strength MD  48  32,000  psi  ASTM D882A  Tensile Strength TD  48  38,000  psi  ASTM D882A  Yield (nominal)  48  42,200  in²/lb      THERMAL Shrinkage MD (150℃)  48  1.26  %  Unrestrained @ 150℃/30 min  Shrinkage TD (150℃)  48  1.28  %  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.