Low density polyethylene (LDPE) is used predominantly as a packaging film, either on its own or blended with linear low density PE to improve mechanical properties. Blown LDPE film has good processability due to a strain hardening effect of the polymer melt caused by the long branched, long chain structure of the polymer. It can be used in food and medical/pharmaceutical packaging in high purity grades as well as in agricultural film and disposable nappies. LDPE is also used in sheathing for electrical and communication cables, and the extrusion coating of paper and board for the packaging of liquids and in moisture barrier applications.
The typical LDPE lamination/coating grade utilised in India is of a melting index at 7.0, which is produced under autoclave technology. It is used in coatings such as on flexible packaging and paper lamination. LDPE lamination/coating grade produced under tubular technology is used in coating of roofing films for example, but trade of this grade is not included in the price assessment.
Find out more about our Polyethylene coverage