Sriniwas Synthetic Packers P. Ltd. Offers Core Separator Tape. Sriniwas Synthetic Packers P. Ltd. Offers multi-product plastic processing facility used in manufacture of Polyethylene Insulated Jelly Filled Communication Cables [PIJF] and Optical fibre cables. The Core Separator Tape also known as Free Edge Tape is used in PIJF communication cables as core separator Tape [Screen] to divide the cable core into two compartments.