Patkar Extrusions Ltd. Offers Soft Blister Packaging Film. Patkar Extrusions Ltd. Supplies a wide range of Stretch and Cling Films in various thickness and sizes for application in Packaging Industries. The Soft Blister Packaging Film is suitably used for all types of soft and general purpose packaging applications. The Soft Blister Packaging Film is available in various widths of up to 1250 mm and in thickness ranging above 80 microns.