Filmterm Polistrat

It is a multi-layer flexible electrical insulation product. It is used for coil outer closures of F class cast resin transformers. Thermal class F (1.55°C). Available in widths from 500 mm to 2000 mm. It is cut in roll, sheet or length according to the customer’s request. Core inner diameter is 76 mm or 152 mm (3 or 6 inches), outer diameter is 220 mm. Polystrat belongs to the Filmterm family. The product is produced by laminating PET Films with a solvent-free adhesive in accordance with ASTM D1830 standard. The product is especially used to physically separate the primary and secondary windings of class F cast resin transformers. Class F (155°C).