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Master Bond adhesives

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DuPont Teijin Films Mylar® A Polyester Film, 300 Gauge
Categories: Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film

Material Notes: Mylar® A films are tough, general purpose films that are transparent in 48 through 92 gauge and translucent in heavier gauges. They have a rough surface to provide ease of handling, good adhesion, and processability.

Mylar® A films have balanced tensile properties and excellent resistance to moisture and most chemicals. They can withstand temperature extremes from -100°F to 300ºF. Mylar® does not become brittle with age under normal conditions, because it contains no plasticizers.

Typical Applications:

  • Apparel stays
  • Book jackets
  • Carbon ribbon
  • Control Tape
  • Drumheads
  • Duct Liners
  • Identifications
  • Membrane touch switches
  • Metallized Base
  • Pressure Sensitive Labels (plain or metallized)
  • Protective surfacing
  • Release liners
  • Roll leaf (hot stamping)
  • Spirit Masters
Approvals: FDA Food Contact Status - All gauges of Mylar® A comply with the Food and Drug Administration regulation 21 CFR 177.1630 -- Polyethylene phthalate polymers. This regulation describes films which may be safely used in contact with all types of food excluding alcoholic beverages. Uncoated films such as Mylar® A can be used to contain foods during oven cooking or oven baking at temperatures above 250 °F. UL 94 VTM-2 - for 92-1400 gauge (0.023 - 0.35mm). UL Recognition - for 92-500 gauge (0.023-0.13mm) HWI=5, HAI=4, CTI=1; for 700-1400 gauge (0.18-0.35mm) HWI=4, HAI=0, CTI=1

Information provided by DuPont.

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Physical PropertiesOriginal ValueComments
Density 1.39 g/ccASTM D1505
Viscosity Measurement 0.56ASTM D2857
Thickness 3.00 mil
 
Mechanical PropertiesOriginal ValueComments
Film Elongation at Break, MD 135 %ASTM D882A
Film Elongation at Break, TD 110 %ASTM D882A
Tensile Modulus 507000 psiASTM D822
Poissons Ratio 0.38Typical Mylar® before yield
 0.58Typical Mylar® after yield
Film Tensile Strength at Break, MD 27000 psiASTM D882A
Film Tensile Strength at Break, TD 31000 psiASTM D882A
 
Electrical PropertiesOriginal ValueComments
Comparative Tracking Index 400 - 600 V
Hot Wire Ignition, HWI <= 7.0 sec
High Amp Arc Ignition, HAI <= 15 arcs
 
Thermal PropertiesOriginal ValueComments
CTE, linear 17.0 µm/m-°C
@Temperature 30.0 - 50.0 °C
92 Gauge; ASTM D696
Specific Heat Capacity 1.17 J/g-°C
Thermal Conductivity 0.000370 cal cm/sec-cm²-°C
@Temperature 25.0 - 75.0 °C
(Mylar® 1000A)
Melting Point 254 °CDSC
Maximum Service Temperature, Air 300 °F
Minimum Service Temperature, Air -100 °F
Shrinkage, MD 1.2 %
@Temperature 150 °C,
Time 1800 sec
Unrestrained
Shrinkage, TD 0.80 %
@Temperature 150 °C,
Time 1800 sec
Unrestrained
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.64 - 1.67typical of Mylar®
Haze 14 - 50 %ASTM D1003
 
Compliance PropertiesOriginal ValueComments
FDA YesSee notes for details.
 
Descriptive Properties
Yield (nominal)6600 in2/lb

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PDTZ9277 / 139599

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