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Mylar® MC2 is a polyester film with a vacuum deposited layer of aluminum on one side and overcoated on both sides with a heat sealable PVdC copolymer. The film has excellent oxygen and light barrier properties. It is available commercially in nominal 50 gauge.
Mylar® MC2 exhibits high and consistent metal side heat seal, strong metal side laminate bonds and is less moisture sensitive.
The film is wound with the metal side facing away from the core.
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Mylar® MC2 can be surface printed with appropriately formulated inks. It can be combined with other webs by adhesive, extrusion and thermal lamination. In laminated form, the film can be used either as the outside or inside web of the package. In laminations, retained laminating solvents should be minimized. High boiling solvents like methyl isobutyl ketone (MIBK, boiling point 246℉) should be avoided. High levels of retained solvents can cause PVdC coating lift and loss of laminate bond strength. When a PVdC surface of the film or film laminate comes in contact with crimp sealing jaws on F/F/S equipment, some crimp jaw sticking is possible at elevated temperatures. This problem can be minimized with a surface-applied, heat resistant overlacquer, and in laminations, by selecting a low-temperature sealant layer such as Surlyn® resin. Unlike some other PVdC coatings that may start to break down when exposed to sterilizing doses of gamma rays, the Mylar® MC2 coating is resistant to these effects and maintains excellent barrier properties after such exposure.
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High temperature heat sealing of polymer-coated Mylar® MC2 may release small amounts of irritating fumes that should be removed through the use of area ventilation.
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Mylar® MC2 can be used in plain and multi-structured form to package snacks, candy, nuts, pharmaceuticals, dry chemicals and other materials that require protection from moisture, oxygen and light. Its flex crack resistance, which ensures retention of its excellent barrier properties even after severe flexing, outperforms foils and foil structures.
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Food Contact Status -
Please contact your Mylar® Specialty Films representative to receive the Regulatory Compliance documents
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Dispose of in compliance with federal, state and local regulations. Preferred options for disposal are (1) recycling, (2) incineration with energy recovery, and (3) landfill. The high fuel value of this product makes option No. 2 very desirable for material which cannot be recycled, but the incinerator must be capable of scrubbing out acidic off gases.
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| Available Thickness [Gauge] |
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50
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| Property |
Thickness |
Value |
Units |
Test |
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BARRIER
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| Gas Permeability - O2, 24 hr |
50 |
0.01 |
cc/100 in² |
ASTM D3985 22℃/50% RH/1 ATM |
| WVTR |
50 |
0.04 |
g/100 in²/day |
ASTM F1249 38℃, 90% RH |
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OPTICAL
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| Clarity |
50 |
<0.5 |
% |
ASTM D1746 |
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PHYSICAL
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| Elongation at Break MD |
50 |
100 |
% |
ASTM D882A |
| Elongation at Break TD |
50 |
80 |
% |
ASTM D882A |
| Modulus |
50 |
500 |
kpsi |
ASTM D822 |
| Tear (Graves) |
50 |
0.7 |
lb |
ASTM D1004 |
| Tensile Strength MD (break) |
50 |
24 |
kpsi |
ASTM D882A |
| Tensile Strength TD (break) |
50 |
28 |
kpsi |
ASTM D882A |
| Unit Weight |
50 |
12.3 |
lb/ream |
ASTM E252 (0.5 m2) |
| Yield (nominal) |
50 |
35,200 |
in²/lb |
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THERMAL
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| Heat Seal Strength (Coat/Coat) |
50 |
200 |
g/in |
250℉, 0.5 sec, 20 psi |
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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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