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The density of PET film is used to estimate PET base film GSM, roll weight, material yield, and construction consistency in protective film. A typical PET base film density is 1.38-1.40 g/cm3, with 1.39 g/cm3 often used as a calculation reference. For adhesive PET protective film, final values should be checked with total thickness, adhesive type, coating weight, liner structure, and sample testing before full use.
The density of polyester film helps estimate base film weight, GSM, roll yield, and finished protective film structure. This technical data sheet applies to PET / BOPET protective films, adhesive-coated polyester films, coated films, and roll converting checks where thickness, roll weight, peel behavior, clarity, and surface compatibility must be reviewed together. Typical values support calculation, while residue, edge lifting, and removal behavior need sample testing before full use.
This technical data sheet explains how pet film density kg m3 supports BOPET base-film GSM, yield, and net roll-weight calculations. It separates PET carrier mass from adhesive, coating, liner, core, and packaging. Peel adhesion, optical appearance, edge stability, and removal behavior still require grade-specific data and actual-surface testing.
PET film refractive index is useful only when the measured layer and test conditions are clear. For transparent PET or BOPET, report wavelength, temperature, specimen direction, and method. A value near 1.60 at 589 nm is a reference for some polyester grades, but orientation and processing history can shift it. Confirm project specifications and finished adhesive-coated constructions on representative samples.
Polyester film optical properties describe how PET or BOPET film transmits, scatters, reflects, and changes visible light. Report haze, luminous transmittance, clarity, gloss, and color with thickness, coating condition, test side, and specimen structure. These data support clear protective film, coated PET, and applied-sample inspection. Peel behavior and post-removal appearance still require testing on the intended surface.
