Polymer Type Thermoplastic Advantages Has higher tensile strength than LDPE. Exhibits higher impact and puncture resistance than LDPE. Lower thickness (gauge) films can be blown compared to LDPE, with better environmental stress cracking resistance compared to LDPE. Disadvantages Lower gloss than LDPE. Narrower temperature range for heat sealing. Not as easy to process as LDPE. Typical Properties Property Value Density (g/cm3) 0.92 Surface Hardness SD48 Tensile Strength (MPa) 20 Flexural Modulus (GPa) 0.35 Notched Izod (kJ/m) 1.06+ Linear Expansion (/°C x 10 5) 20 Elongation at Break (%) 500 Strain at Yield (%) 20 Max. Operating Temp. (°C) 50 Water Absorption (%) 0.01 Oxygen Index (%) 17 Flammability UL94 HB Volume Resistivity (log ohm.cm) 16 Dielectric Strength (MV/m) 25 Dissipation Factor 1kHz 0.0003 Dielectric Constant 1kHz 2.3 HDT @ 0.45 MPa (°C) 45 HDT @ 1.80 MPa (°C) 37 Material. Drying hrs @ (°C) NA Melting Temp. Range (°C) 220 - 260 Mould Shrinkage (%) 3 Mould Temp. Range (°C) 20 - 60
Applications Packaging, particularly film for bags and sheets. Lower thickness (gauge) may be used compared to LDPE. Cable covering, toys, lids, buckets and containers, pipe.