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- DuPont Teijin Films Mylar® X842 Polyester Film, 48 Gauge
DuPont Teijin Films Mylar® X842 Polyester Film, 48 Gauge
| Category | Polymer , Film , Thermoplastic , Polyester, TP , Polyester Film |
| Manufacturer | DuPont Teijin Films (DTF) |
| Trade Name | Mylar® |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | DuPont Teijin Films Mylar® X842 Polyester Film, 48 Gauge.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Mylar® X842 is a clear polyester film that has been chemically treated on both sides for the packaging converting market. One side is chemically treated for metal adhesion. The other side is chemically treated for print/PE extrusion. Approvals: FDA Food Contact Status - All gauges of Mylar® X842 comply with the Food and Drug Administration regulation 21 CFR 177.1630 -- Polyethylene phthalate polymers, sections (f) and (h). These regulations describe films that can safely be used in contact with all types of foods, excluding alcoholic beverages. The films listed above can be used to contain foods during oven cooking at temperatures up to and above 250°F.Information provided by DuPont.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.40 g/cc | 0.0506 lb/in³ | |
| Water Vapor Transmission | 43.5 g/m²/day @Temperature 38.0 °C |
2.80 g/100 in²/day @Temperature 100 °F |
90% RH; ASTM F1249 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Film Elongation at Break, MD | 110 % | 110 % | ASTM D882A |
| Film Elongation at Break, TD | 70 % | 70 % | ASTM D882A |
| Coefficient of Friction, Dynamic | 0.40 | 0.40 | ASTM D1894 |
| Film Tensile Strength at Break, MD | 214 MPa | 31000 psi | ASTM D882A |
| Film Tensile Strength at Break, TD | 290 MPa | 42000 psi | ASTM D882A |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Heat Capacity | 1.17 J/g-°C | 0.280 BTU/lb-°F | Typical Mylar® |
| Melting Point | 254 °C | 489 °F | Typical Mylar® via DSC |
| Maximum Service Temperature, Air | 121 °C | 250 °F | |
| Shrinkage, MD | 1.25 % @Temperature 150 °C, Time 1800 sec |
1.25 % @Temperature 302 °F, Time 0.500 hour |
Unrestrained |
| Shrinkage, TD | 0.50 % @Temperature 150 °C, Time 1800 sec |
0.50 % @Temperature 302 °F, Time 0.500 hour |
Unrestrained |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Haze | 3.5 % | 3.5 % | ASTM D1003 |
| Transmission, Visible | 90 % | 90 % | ASTM D1003 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Gas Permeability (Base film) | 6 cc/100 in2 | O2, metallized; ASTM D1434 |
| Yield (nominal) | 42200 in2/lb |
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