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Rulon Bearings

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DuPont Teijin Films Mylar® CL Polyester Film, 100 Gauge
Categories: Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film

Material Notes: Mylar® CL is an exceptionally strong polyester film designed to package foods. Foods can be heated or cooked in this film at temperatures up to 400°F. Mylar® CL is commercially available in nominal 50 and 100 gauges. The film is typically provided with the sealant side wound toward the core.

General Product Info: This film is similar to Mylar® OL2, however, this film will have much stronger seals at temperatures above 180°F than OL2. This film withstands freezing temperatures down to -40°F. Mylar® CL softens in the range of 425°-450°F.

Typical Applications: This film when laminated to foil makes an excellent inner cap seal for PET jars. This film is also suitable for heating food products in microwave or conventional ovens.

Approvals: FDA Food Contact Status - All gauges of Mylar® CL 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® CL can be used to contain foods during oven cooking or oven baking at temperatures above 250 °F.

Information provided by DuPont.

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Physical PropertiesOriginal ValueComments
Density 1.39 g/ccTypical Mylar®; ASTM D1505
Water Vapor Transmission 1.30 g/100 in²/dayE96 Procedure E
Thickness 1.00 mil
Coating Weight 21.8 lb/ream0.5 m2; E252
 
Mechanical PropertiesOriginal ValueComments
Film Elongation at Break, MD 140 %ASTM D882
Film Elongation at Break, TD 80 %ASTM D882
Tensile Modulus 550000 psiASTM D822
Graves Tear Strength 0.700 pliASTM D1004
Film Tensile Strength at Break, MD 27000 psiASTM D882
Film Tensile Strength at Break, TD 40000 psiASTM D882
Heat Seal Strength 250 g/in
@Time 0.250 sec,
Pressure 0.0345 MPa
120°C, 35% RH
 
Thermal PropertiesOriginal ValueComments
Specific Heat Capacity 1.17 J/g-°CTypical Mylar®
Melting Point 254 °CTypical Mylar® via DSC
Maximum Service Temperature, Air 250 °F
Minimum Service Temperature, Air -40.0 °F
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.64 - 1.67typical of Mylar®
 
Compliance PropertiesOriginal ValueComments
FDA YesSee notes for details.
 
Descriptive Properties
Gas Permeability (Base film)5 cc/100 in2O2, 24 hr; ASTM D3985 (77°F/75% RH/1 ATM)
Yield (nominal)19900 in2/lb

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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