The width can be customized in the range of 500~2600mm and the thickness in the range of 0.08~0.3mm. The production process can be adjusted according to customer requirements, and flame retardant and non-flame retardant products can be customized to choose from. It is suitable for hot melt adhesives such as butyl glue. It has high fastness, no glue shedding, good film flatness and excellent aging resistance, especially suitable for the processing and production of waterproof film formed in the door panel of the automobile industry.