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Mylar® M34 is a transparent, polyester packaging film, solvent coated on one side with a PVdC copolymer. The coating is heat sealable and is an excellent moisture and oxygen barrier.
M34 is available in 50, 75 and 100 gauge with the coated side normally wound toward the core.
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Mylar® M34 can be surface or reverse printed with appropriately formulated inks, and can be combined with other webs by adhesive or extrusion laminating. When printing and adhesive laminating on the coated surface, active solvents such as acetates, ketones and toluene should be removed as completely as possible during drying to avoid adverse effects on coating adhesion. Slow evaporating solvents, such as glycol ethers, should be avoided completely.
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High temperature heat sealing of polymer-coated Mylar® M34 may release small amounts of irritating fumes which should be removed by using area ventilation.
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Mylar® M34 was designed to be reverse printed on the coated side, then combined with a sealant layer such as polyethylene or Surlyn® resin - locking in the PVdC coating. Such a structure is quite durable, and its sparkling clarity and excellent barrier properties, plus its resistance to heat and humidity, make this an ideal combination for gas and vacuum packaging of processed meats and cheese.
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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 that cannot be recycled, but incinerator must be capable of scrubbing out acidic off-gases.
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| Available Thickness [Gauge] |
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50; 75; 100
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| Property |
Thickness |
Value |
Units |
Test |
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BARRIER
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| Gas Permeability - O2, 24 hr |
50 - 75 |
0.6 |
cc/100 in² |
ASTM D3985 22℃/50% RH/1 ATM |
| WVTR |
50 - 75 |
0.6 |
g/100 in²/day |
ASTM F1249 38℃, 90% RH |
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OPTICAL
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| Haze |
50 |
7 |
% |
ASTM D1003 |
| Haze |
75 |
8 |
% |
ASTM D1003 |
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PHYSICAL
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| Elongation at Break MD |
50 |
110 |
% |
ASTM D882A |
| Elongation at Break MD |
75 |
130 |
% |
ASTM D882A |
| Elongation at Break TD |
50 |
70 |
% |
ASTM D882A |
| Elongation at Break TD |
75 |
70 |
% |
ASTM D882A |
| Modulus |
50 - 75 |
500 |
kpsi |
ASTM D822 |
| Tear (Graves) |
50 |
0.7 |
lb |
ASTM D1004 |
| Tear (Graves) |
75 |
0.9 |
lb |
ASTM D1004 |
| Tensile Strength MD (break) |
50 |
27 |
kpsi |
ASTM D882A |
| Tensile Strength MD (break) |
75 |
25 |
kpsi |
ASTM D882A |
| Tensile Strength TD (break) |
50 |
33 |
kpsi |
ASTM D882A |
| Tensile Strength TD (break) |
75 |
33 |
kpsi |
ASTM D882A |
| Unit Weight |
100 |
21.1 |
lb/ream |
ASTM E252 (0.5 m2) |
| Unit Weight |
50 |
11.7 |
lb/ream |
ASTM E252 (0.5 m2) |
| Unit Weight |
75 |
17.5 |
lb/ream |
ASTM E252 (0.5 m2) |
| Yield (nominal) |
100 |
24,600 |
in2/lb |
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| Yield (nominal) |
50 |
37,500 |
in²/lb |
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| Yield (nominal) |
75 |
24,600 |
in²/lb |
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THERMAL
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| Heat Seal Strength (Coat/Coat) |
50 - 75 |
150 |
g/in |
250℉, 0.5 sec, 20 psi |
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| Core I.D. (Inches) |
Roll O.D. (Inches) |
Thickness (Gauge) |
Length (Feet) |
| 3 |
9 1/2 ± 1/4 |
50 |
9,500 |
| 3 |
9 1/2 ± 1/5 |
75 |
6,300 |
| 3 |
13 ± 1/4 |
50 |
19,200 |
| 3 |
13 ± 1/4 |
75 |
12,800 |
| 3 |
18 ± 1/4 |
50 |
38,300 |
| 3 |
18 ± 1/4 |
75 |
25,400 |
| 6 |
11 ± 1/4 |
50 |
9,600 |
| 6 |
11 ± 1/4 |
75 |
6,400 |
| 6 |
14 ± 1/4 |
50 |
18,800 |
| 6 |
14 ± 1/4 |
75 |
12,500 |
| 6 |
18 ± 1/4 |
50 |
34,600 |
| 6 |
18 ± 1/4 |
75 |
22,900 |
| 6 |
22 1/2 ± 1/4 |
50 |
57,000 |
| 6 |
22 1/2 ± 1/4 |
75 |
37,800 |
| 6 |
24 ± 1/4 |
50 |
65,600 |
| 6 |
24 ± 1/4 |
75 |
43,500 |
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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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