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Mylar® A951 is a silicone coated polyester film designed for use as a release liner in various casting applications. The silicone release coating is applied to the film during the film production process, providing excellent adhesion of the silicone release coating to the polyester film for improved liner performance.
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Mylar® A951 has balanced tensile properties and good dimensional stability. Release values typically range between 15 and 25 grams per inch when tested with aggressive pressure-sensitive adhesives. It is recommended that the liner be tested in each application to verify the absolute value of the release strength.
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| Available Thickness [Gauge] |
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92; 142; 200
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| Property |
Thickness |
Value |
Units |
Test |
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OPTICAL
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| Haze |
92 |
14 |
% |
ASTM D1003 |
| Haze |
140 |
24 |
% |
ASTM D1003 |
| Haze |
200 |
30 |
% |
ASTM D1003 |
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PHYSICAL
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| Coating Thickness |
92 - 200 |
0.045 |
lb/ream |
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| Elongation at Break MD |
92 |
125 |
% |
ASTM D882A |
| Elongation at Break MD |
140 |
135 |
% |
ASTM D882A |
| Elongation at Break MD |
200 |
155 |
% |
ASTM D882A |
| Elongation at Break TD |
92 |
90 |
% |
ASTM D882A |
| Elongation at Break TD |
140 |
110 |
% |
ASTM D882A |
| Elongation at Break TD |
200 |
125 |
% |
ASTM D882A |
| Peel Strength |
92 - 200 |
22 |
g/25 mm |
using Tesa 7475 Tape |
| Tensile Strength MD |
92 - 200 |
27.0 |
kpsi |
ASTM D882A |
| Tensile Strength TD |
92 - 200 |
32.0 |
kpsi |
ASTM D882A |
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THERMAL
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| Shrinkage MD (150℃) |
92 - 200 |
1.8 |
% |
Unrestrained @ 150℃/30 min |
| Shrinkage TD (150℃) |
92 - 200 |
0.5 |
% |
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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