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Master Bond adhesives
DuPont Teijin Films Mylar® MLB Polyester Film, 48 Gauge
Categories: Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film

Material Notes: Product Description: Mylar® MLB is an uncoated, transparent, polyester film designed for use as a component of a lamination structure and may be suitable for use in medical applications. Mylar® MLB is commercially available in nominal 48 and 300 gauge. Mylar® MLB is available with corona treatment on one or both sides. These products are known as Mylar® MLBT and MLBT2 respectively and are not offered in the 300 gauge range

General Product Info: Mylar® MLB polyester film frequently is selected as a component of a laminated structure because of its ability to contribute great strength, high temperature resistance and flavor/odor barrier. Its sparkling clarity and relative insensitivity to heat and humidity make it an ideal print carrier and outer ply of many laminated food packaging structures. Retention of properties over a temperature range from -100°F to 300°F permits uses requiring freezer storage temperatures followed by heating for warming, cooking or ovenable applications. The chemical resistance and barrier to acids, weak bases, greases and oils, detergents and other active ingredients make Mylar® MLB useful in containing many "hard-to-hold" food or non-food products. Mylar® MLB is not degraded by standard sterilization procedures involving steam retorts, gamma or cobalt radiation, ethylene oxide gas exposure or hydrogen peroxide immersion.

Typical Applications: A basic lamination would combine plain or printed Mylar® MLB with a heat sealable ply consisting of LDPE, LLDPE, EVA, ionomer, acid copolymer, PVC or other materials using adhesive or extrusion laminating techniques. Such structures might be suitable for heat sealed pouches for frozen foods, heat-in applications, packages not requiring high oxygen barrier, some condiments and some medical device applications. If greater gas barrier is required, a layer of foil, PVdC or EVOH may be inserted between the Mylar® MLB and the sealant layer, or barrier adhesives or sealant layers may be utilized. Typical applications might include processed meats, condiments, nuts, cheese, sauces and dry mixes.

Approvals: FDA Food Contact Status - All gauges of Mylar® LB comply with the Food and Drug Administration regulation 21 CFR 177.1630 -- Polyethylene Terephthalate 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® LB can be used to contain foods during oven cooking or oven baking at temperatures above 250°F. Drug Master File - This product is listed in our Drug Master File.

Information provided by DuPont.

Vendors:
Available Properties
  • Density, ASTM D1505, Typical Mylar®
  • Water Vapor Transmission, ASTM F1249, 90% RH
  • Thickness
  • Film Elongation at Break, MD, ASTM D882A
  • Film Elongation at Break, TD, ASTM D882A
  • Tensile Modulus, ASTM D882
  • Graves Tear Strength, ASTM D1004
  • Film Tensile Strength at Break, MD, ASTM D882A
  • Film Tensile Strength at Break, TD, ASTM D882A
  • Specific Heat Capacity, Typical Mylar®
  • Melting Point, Typical Mylar® via DSC
  • Maximum Service Temperature, Air
  • Minimum Service Temperature, Air
  • Shrinkage, MD, Unrestrained
  • Shrinkage, TD, Unrestrained
  • Refractive Index, typical of Mylar®
  • Haze, ASTM D1003
  • Gloss, ASTM D2457, 20°
  • Transmission, Visible, transparent; thickness not quantified
  • FDA, See notes for details.
  
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Manufacturer Notes:
DuPont Teijin Films

Category Notes
Plastic

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