The manufacturing process creates distinct properties in the final product, splitting the category mainly into cast and blown varieties. Cast film is produced by feeding molten polymer through a straight die slot onto cooled rollers, resulting in excellent clarity, quiet unwind, and consistent thickness. In contrast, blown film involves extruding the polymer through a circular die and blowing it into a vertical bubble, which yields a tougher product with higher tear resistance, making it ideal for heavier or sharper loads.
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