Film Shrinkage Test

Understanding Heat Setting, Dimensional Stability, and Why Low Shrinkage Matters for Converting Processes Product Overview When engineers specify BOPET (Biaxially Oriented Polyethylene Terephthalate) film, they look at tensile strength, optical clarity, and thickness. But one of the most critical metrics is often misunderstood: BOPET Film Thermal Shrinkage. If a film shrinks too much when exposed